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Finding the Fourth Proportional to 485,706,367.92, 728,610,581.88 and 158,207,414.16

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Solution

The fourth proportional to 485,706,367.92, 728,610,581.88 and 158,207,414.16 is: 237,327,743.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,706,367.92 : 728,610,581.88 = 158,207,414.16 : x
  2. Step 2: Convert to fraction form
    485,706,367.92/728,610,581.88 = 158,207,414.16/x
  3. Step 3: Cross multiply
    485,706,367.92x = 728,610,581.88 × 158,207,414.16
  4. Step 4: Simplify right side
    485,706,367.92x = 115,271,596,088,847,744
  5. Step 5: Solve for x
    x = 115,271,596,088,847,744/485,706,367.92
  6. Step 6: Final answer
    x = 237,327,743.06

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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.