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Finding the Fourth Proportional to 74,854,886.80, 112,282,330.20 and 73,847,117.20

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Solution

The fourth proportional to 74,854,886.80, 112,282,330.20 and 73,847,117.20 is: 110,770,675.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,854,886.80 : 112,282,330.20 = 73,847,117.20 : x
  2. Step 2: Convert to fraction form
    74,854,886.80/112,282,330.20 = 73,847,117.20/x
  3. Step 3: Cross multiply
    74,854,886.80x = 112,282,330.20 × 73,847,117.20
  4. Step 4: Simplify right side
    74,854,886.80x = 8,291,726,397,768,500
  5. Step 5: Solve for x
    x = 8,291,726,397,768,500/74,854,886.80
  6. Step 6: Final answer
    x = 110,770,675.80

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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.