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Finding the Fourth Proportional to 40,321,854.40, 60,482,781.60 and 40,321,854.40

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Solution

The fourth proportional to 40,321,854.40, 60,482,781.60 and 40,321,854.40 is: 60,482,781.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,321,854.40 : 60,482,781.60 = 40,321,854.40 : x
  2. Step 2: Convert to fraction form
    40,321,854.40/60,482,781.60 = 40,321,854.40/x
  3. Step 3: Cross multiply
    40,321,854.40x = 60,482,781.60 × 40,321,854.40
  4. Step 4: Simplify right side
    40,321,854.40x = 2,438,777,913,382,199
  5. Step 5: Solve for x
    x = 2,438,777,913,382,199/40,321,854.40
  6. Step 6: Final answer
    x = 60,482,781.60

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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.