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Finding the Fourth Proportional to 83,973,847.80, 125,960,771.70 and 35,506,428.60

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Solution

The fourth proportional to 83,973,847.80, 125,960,771.70 and 35,506,428.60 is: 53,259,642.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,973,847.80 : 125,960,771.70 = 35,506,428.60 : x
  2. Step 2: Convert to fraction form
    83,973,847.80/125,960,771.70 = 35,506,428.60/x
  3. Step 3: Cross multiply
    83,973,847.80x = 125,960,771.70 × 35,506,428.60
  4. Step 4: Simplify right side
    83,973,847.80x = 4,472,417,146,766,951
  5. Step 5: Solve for x
    x = 4,472,417,146,766,951/83,973,847.80
  6. Step 6: Final answer
    x = 53,259,642.90

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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.