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Finding the Fourth Proportional to 71,136,065.60, 99,859,230.40 and 71,136,065.60

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Solution

The fourth proportional to 71,136,065.60, 99,859,230.40 and 71,136,065.60 is: 99,859,230.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,136,065.60 : 99,859,230.40 = 71,136,065.60 : x
  2. Step 2: Convert to fraction form
    71,136,065.60/99,859,230.40 = 71,136,065.60/x
  3. Step 3: Cross multiply
    71,136,065.60x = 99,859,230.40 × 71,136,065.60
  4. Step 4: Simplify right side
    71,136,065.60x = 7,103,592,764,499,914
  5. Step 5: Solve for x
    x = 7,103,592,764,499,914/71,136,065.60
  6. Step 6: Final answer
    x = 99,859,230.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.