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Finding the Fourth Proportional to 96,610.40, 145,304.40 and 86,501.60

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Solution

The fourth proportional to 96,610.40, 145,304.40 and 86,501.60 is: 130,100.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,610.40 : 145,304.40 = 86,501.60 : x
  2. Step 2: Convert to fraction form
    96,610.40/145,304.40 = 86,501.60/x
  3. Step 3: Cross multiply
    96,610.40x = 145,304.40 × 86,501.60
  4. Step 4: Simplify right side
    96,610.40x = 12,569,063,087.04
  5. Step 5: Solve for x
    x = 12,569,063,087.04/96,610.40
  6. Step 6: Final answer
    x = 130,100.52

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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.