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Finding the Fourth Proportional to 91,829,170.80, 137,743,756.20 and 91,829,170.80

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Solution

The fourth proportional to 91,829,170.80, 137,743,756.20 and 91,829,170.80 is: 137,743,756.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,829,170.80 : 137,743,756.20 = 91,829,170.80 : x
  2. Step 2: Convert to fraction form
    91,829,170.80/137,743,756.20 = 91,829,170.80/x
  3. Step 3: Cross multiply
    91,829,170.80x = 137,743,756.20 × 91,829,170.80
  4. Step 4: Simplify right side
    91,829,170.80x = 12,648,894,914,723,358
  5. Step 5: Solve for x
    x = 12,648,894,914,723,358/91,829,170.80
  6. Step 6: Final answer
    x = 137,743,756.20

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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.