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Finding the Fourth Proportional to 79,572.03, 109,807.20 and 43,762.04

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Solution

The fourth proportional to 79,572.03, 109,807.20 and 43,762.04 is: 60,390.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,572.03 : 109,807.20 = 43,762.04 : x
  2. Step 2: Convert to fraction form
    79,572.03/109,807.20 = 43,762.04/x
  3. Step 3: Cross multiply
    79,572.03x = 109,807.20 × 43,762.04
  4. Step 4: Simplify right side
    79,572.03x = 4,805,386,529.65
  5. Step 5: Solve for x
    x = 4,805,386,529.65/79,572.03
  6. Step 6: Final answer
    x = 60,390.40

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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.