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Finding the Fourth Proportional to 101,737.05, 140,404.17 and 56,419.23

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Solution

The fourth proportional to 101,737.05, 140,404.17 and 56,419.23 is: 77,862.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,737.05 : 140,404.17 = 56,419.23 : x
  2. Step 2: Convert to fraction form
    101,737.05/140,404.17 = 56,419.23/x
  3. Step 3: Cross multiply
    101,737.05x = 140,404.17 × 56,419.23
  4. Step 4: Simplify right side
    101,737.05x = 7,921,495,160.19
  5. Step 5: Solve for x
    x = 7,921,495,160.19/101,737.05
  6. Step 6: Final answer
    x = 77,862.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.