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Finding the Fourth Proportional to 99,649,062.80, 149,473,594.20 and 73,821,030.20

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Solution

The fourth proportional to 99,649,062.80, 149,473,594.20 and 73,821,030.20 is: 110,731,545.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,649,062.80 : 149,473,594.20 = 73,821,030.20 : x
  2. Step 2: Convert to fraction form
    99,649,062.80/149,473,594.20 = 73,821,030.20/x
  3. Step 3: Cross multiply
    99,649,062.80x = 149,473,594.20 × 73,821,030.20
  4. Step 4: Simplify right side
    99,649,062.80x = 11,034,294,711,540,744
  5. Step 5: Solve for x
    x = 11,034,294,711,540,744/99,649,062.80
  6. Step 6: Final answer
    x = 110,731,545.30

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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.