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Finding the Fourth Proportional to 243,897.28, 365,880.39 and 75,432.36

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Solution

The fourth proportional to 243,897.28, 365,880.39 and 75,432.36 is: 113,159.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,897.28 : 365,880.39 = 75,432.36 : x
  2. Step 2: Convert to fraction form
    243,897.28/365,880.39 = 75,432.36/x
  3. Step 3: Cross multiply
    243,897.28x = 365,880.39 × 75,432.36
  4. Step 4: Simplify right side
    243,897.28x = 27,599,222,808.91
  5. Step 5: Solve for x
    x = 27,599,222,808.91/243,897.28
  6. Step 6: Final answer
    x = 113,159.21

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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.