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Finding the Fourth Proportional to 64,751.52, 97,127.28 and 61,096.80

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Solution

The fourth proportional to 64,751.52, 97,127.28 and 61,096.80 is: 91,645.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,751.52 : 97,127.28 = 61,096.80 : x
  2. Step 2: Convert to fraction form
    64,751.52/97,127.28 = 61,096.80/x
  3. Step 3: Cross multiply
    64,751.52x = 97,127.28 × 61,096.80
  4. Step 4: Simplify right side
    64,751.52x = 5,934,166,000.70
  5. Step 5: Solve for x
    x = 5,934,166,000.70/64,751.52
  6. Step 6: Final answer
    x = 91,645.20

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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.