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Finding the Fourth Proportional to 89,274.40, 133,725.30 and 41,929.90

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Solution

The fourth proportional to 89,274.40, 133,725.30 and 41,929.90 is: 62,807.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,274.40 : 133,725.30 = 41,929.90 : x
  2. Step 2: Convert to fraction form
    89,274.40/133,725.30 = 41,929.90/x
  3. Step 3: Cross multiply
    89,274.40x = 133,725.30 × 41,929.90
  4. Step 4: Simplify right side
    89,274.40x = 5,607,088,456.47
  5. Step 5: Solve for x
    x = 5,607,088,456.47/89,274.40
  6. Step 6: Final answer
    x = 62,807.35

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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.