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Finding the Fourth Proportional to 72,176.81, 108,278.87 and 32,737.01

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Solution

The fourth proportional to 72,176.81, 108,278.87 and 32,737.01 is: 49,111.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,176.81 : 108,278.87 = 32,737.01 : x
  2. Step 2: Convert to fraction form
    72,176.81/108,278.87 = 32,737.01/x
  3. Step 3: Cross multiply
    72,176.81x = 108,278.87 × 32,737.01
  4. Step 4: Simplify right side
    72,176.81x = 3,544,725,744.90
  5. Step 5: Solve for x
    x = 3,544,725,744.90/72,176.81
  6. Step 6: Final answer
    x = 49,111.70

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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.