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Finding the Fourth Proportional to 65,204,593.80, 97,806,890.70 and 58,710,078.60

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Solution

The fourth proportional to 65,204,593.80, 97,806,890.70 and 58,710,078.60 is: 88,065,117.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,204,593.80 : 97,806,890.70 = 58,710,078.60 : x
  2. Step 2: Convert to fraction form
    65,204,593.80/97,806,890.70 = 58,710,078.60/x
  3. Step 3: Cross multiply
    65,204,593.80x = 97,806,890.70 × 58,710,078.60
  4. Step 4: Simplify right side
    65,204,593.80x = 5,742,250,240,618,609
  5. Step 5: Solve for x
    x = 5,742,250,240,618,609/65,204,593.80
  6. Step 6: Final answer
    x = 88,065,117.90

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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.