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Finding the Fourth Proportional to 162,663.04, 224,472.76 and 91,043.02

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Solution

The fourth proportional to 162,663.04, 224,472.76 and 91,043.02 is: 125,638.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,663.04 : 224,472.76 = 91,043.02 : x
  2. Step 2: Convert to fraction form
    162,663.04/224,472.76 = 91,043.02/x
  3. Step 3: Cross multiply
    162,663.04x = 224,472.76 × 91,043.02
  4. Step 4: Simplify right side
    162,663.04x = 20,436,677,978.14
  5. Step 5: Solve for x
    x = 20,436,677,978.14/162,663.04
  6. Step 6: Final answer
    x = 125,638.12

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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.