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Finding the Fourth Proportional to 136,486,932, 204,730,398 and 45,610,521

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Solution

The fourth proportional to 136,486,932, 204,730,398 and 45,610,521 is: 68,415,781.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,486,932 : 204,730,398 = 45,610,521 : x
  2. Step 2: Convert to fraction form
    136,486,932/204,730,398 = 45,610,521/x
  3. Step 3: Cross multiply
    136,486,932x = 204,730,398 × 45,610,521
  4. Step 4: Simplify right side
    136,486,932x = 9,337,860,117,317,358
  5. Step 5: Solve for x
    x = 9,337,860,117,317,358/136,486,932
  6. Step 6: Final answer
    x = 68,415,781.50

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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.