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Finding the Fourth Proportional to 351,937.38, 527,900.58 and 85,695.63

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Solution

The fourth proportional to 351,937.38, 527,900.58 and 85,695.63 is: 128,542.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,937.38 : 527,900.58 = 85,695.63 : x
  2. Step 2: Convert to fraction form
    351,937.38/527,900.58 = 85,695.63/x
  3. Step 3: Cross multiply
    351,937.38x = 527,900.58 × 85,695.63
  4. Step 4: Simplify right side
    351,937.38x = 45,238,772,780.47
  5. Step 5: Solve for x
    x = 45,238,772,780.47/351,937.38
  6. Step 6: Final answer
    x = 128,542.11

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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.