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Finding the Fourth Proportional to 171,937.70, 257,906.55 and 101,780.90

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Solution

The fourth proportional to 171,937.70, 257,906.55 and 101,780.90 is: 152,671.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,937.70 : 257,906.55 = 101,780.90 : x
  2. Step 2: Convert to fraction form
    171,937.70/257,906.55 = 101,780.90/x
  3. Step 3: Cross multiply
    171,937.70x = 257,906.55 × 101,780.90
  4. Step 4: Simplify right side
    171,937.70x = 26,249,960,774.90
  5. Step 5: Solve for x
    x = 26,249,960,774.90/171,937.70
  6. Step 6: Final answer
    x = 152,671.35

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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.