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Finding the Fourth Proportional to 79,262,641.80, 118,893,962.70 and 36,215,920.80

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Solution

The fourth proportional to 79,262,641.80, 118,893,962.70 and 36,215,920.80 is: 54,323,881.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,262,641.80 : 118,893,962.70 = 36,215,920.80 : x
  2. Step 2: Convert to fraction form
    79,262,641.80/118,893,962.70 = 36,215,920.80/x
  3. Step 3: Cross multiply
    79,262,641.80x = 118,893,962.70 × 36,215,920.80
  4. Step 4: Simplify right side
    79,262,641.80x = 4,305,854,336,741,354
  5. Step 5: Solve for x
    x = 4,305,854,336,741,354/79,262,641.80
  6. Step 6: Final answer
    x = 54,323,881.20

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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.