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Finding the Fourth Proportional to 72,484.65, 108,700.93 and 25,086.89

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Solution

The fourth proportional to 72,484.65, 108,700.93 and 25,086.89 is: 37,621.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,484.65 : 108,700.93 = 25,086.89 : x
  2. Step 2: Convert to fraction form
    72,484.65/108,700.93 = 25,086.89/x
  3. Step 3: Cross multiply
    72,484.65x = 108,700.93 × 25,086.89
  4. Step 4: Simplify right side
    72,484.65x = 2,726,968,273.81
  5. Step 5: Solve for x
    x = 2,726,968,273.81/72,484.65
  6. Step 6: Final answer
    x = 37,621.32

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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.