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Finding the Fourth Proportional to 64,513.40, 96,575.70 and 56,737.40

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Solution

The fourth proportional to 64,513.40, 96,575.70 and 56,737.40 is: 84,935.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,513.40 : 96,575.70 = 56,737.40 : x
  2. Step 2: Convert to fraction form
    64,513.40/96,575.70 = 56,737.40/x
  3. Step 3: Cross multiply
    64,513.40x = 96,575.70 × 56,737.40
  4. Step 4: Simplify right side
    64,513.40x = 5,479,454,121.18
  5. Step 5: Solve for x
    x = 5,479,454,121.18/64,513.40
  6. Step 6: Final answer
    x = 84,935.13

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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.