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Finding the Fourth Proportional to 576,775,217.80, 865,186,446.30 and 167,831,368.30

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Solution

The fourth proportional to 576,775,217.80, 865,186,446.30 and 167,831,368.30 is: 251,753,925.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,775,217.80 : 865,186,446.30 = 167,831,368.30 : x
  2. Step 2: Convert to fraction form
    576,775,217.80/865,186,446.30 = 167,831,368.30/x
  3. Step 3: Cross multiply
    576,775,217.80x = 865,186,446.30 × 167,831,368.30
  4. Step 4: Simplify right side
    576,775,217.80x = 145,205,425,117,143,488
  5. Step 5: Solve for x
    x = 145,205,425,117,143,488/576,775,217.80
  6. Step 6: Final answer
    x = 251,753,925.34

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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.