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Finding the Fourth Proportional to 92,289.46, 138,319.98 and 65,592.91

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Solution

The fourth proportional to 92,289.46, 138,319.98 and 65,592.91 is: 98,308.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,289.46 : 138,319.98 = 65,592.91 : x
  2. Step 2: Convert to fraction form
    92,289.46/138,319.98 = 65,592.91/x
  3. Step 3: Cross multiply
    92,289.46x = 138,319.98 × 65,592.91
  4. Step 4: Simplify right side
    92,289.46x = 9,072,809,999.34
  5. Step 5: Solve for x
    x = 9,072,809,999.34/92,289.46
  6. Step 6: Final answer
    x = 98,308.19

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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.