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Finding the Fourth Proportional to 62,649,793.70, 93,974,690.55 and 45,643,681.70

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Solution

The fourth proportional to 62,649,793.70, 93,974,690.55 and 45,643,681.70 is: 68,465,522.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,649,793.70 : 93,974,690.55 = 45,643,681.70 : x
  2. Step 2: Convert to fraction form
    62,649,793.70/93,974,690.55 = 45,643,681.70/x
  3. Step 3: Cross multiply
    62,649,793.70x = 93,974,690.55 × 45,643,681.70
  4. Step 4: Simplify right side
    62,649,793.70x = 4,289,350,863,320,198
  5. Step 5: Solve for x
    x = 4,289,350,863,320,198/62,649,793.70
  6. Step 6: Final answer
    x = 68,465,522.55

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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.