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Finding the Fourth Proportional to 551,124,053.80, 826,686,080.70 and 162,912,308.20

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Solution

The fourth proportional to 551,124,053.80, 826,686,080.70 and 162,912,308.20 is: 244,368,462.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,124,053.80 : 826,686,080.70 = 162,912,308.20 : x
  2. Step 2: Convert to fraction form
    551,124,053.80/826,686,080.70 = 162,912,308.20/x
  3. Step 3: Cross multiply
    551,124,053.80x = 826,686,080.70 × 162,912,308.20
  4. Step 4: Simplify right side
    551,124,053.80x = 134,677,337,563,648,464
  5. Step 5: Solve for x
    x = 134,677,337,563,648,464/551,124,053.80
  6. Step 6: Final answer
    x = 244,368,462.30

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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.