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Finding the Fourth Proportional to 516,987.86, 775,482.06 and 162,029.52

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Solution

The fourth proportional to 516,987.86, 775,482.06 and 162,029.52 is: 243,044.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,987.86 : 775,482.06 = 162,029.52 : x
  2. Step 2: Convert to fraction form
    516,987.86/775,482.06 = 162,029.52/x
  3. Step 3: Cross multiply
    516,987.86x = 775,482.06 × 162,029.52
  4. Step 4: Simplify right side
    516,987.86x = 125,650,985,950.41
  5. Step 5: Solve for x
    x = 125,650,985,950.41/516,987.86
  6. Step 6: Final answer
    x = 243,044.36

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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.