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Finding the Fourth Proportional to 168,171,686.90, 251,779,233.45 and 168,171,686.90

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Solution

The fourth proportional to 168,171,686.90, 251,779,233.45 and 168,171,686.90 is: 251,779,233.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,171,686.90 : 251,779,233.45 = 168,171,686.90 : x
  2. Step 2: Convert to fraction form
    168,171,686.90/251,779,233.45 = 168,171,686.90/x
  3. Step 3: Cross multiply
    168,171,686.90x = 251,779,233.45 × 168,171,686.90
  4. Step 4: Simplify right side
    168,171,686.90x = 42,342,138,415,675,408
  5. Step 5: Solve for x
    x = 42,342,138,415,675,408/168,171,686.90
  6. Step 6: Final answer
    x = 251,779,233.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.