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Finding the Fourth Proportional to 65,386.62, 97,951.28 and 43,132.01

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Solution

The fourth proportional to 65,386.62, 97,951.28 and 43,132.01 is: 64,613.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,386.62 : 97,951.28 = 43,132.01 : x
  2. Step 2: Convert to fraction form
    65,386.62/97,951.28 = 43,132.01/x
  3. Step 3: Cross multiply
    65,386.62x = 97,951.28 × 43,132.01
  4. Step 4: Simplify right side
    65,386.62x = 4,224,834,883.06
  5. Step 5: Solve for x
    x = 4,224,834,883.06/65,386.62
  6. Step 6: Final answer
    x = 64,613.14

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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.