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Finding the Fourth Proportional to 71,540,267.95, 98,746,978.91 and 41,778,943.97

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Solution

The fourth proportional to 71,540,267.95, 98,746,978.91 and 41,778,943.97 is: 57,667,445.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,540,267.95 : 98,746,978.91 = 41,778,943.97 : x
  2. Step 2: Convert to fraction form
    71,540,267.95/98,746,978.91 = 41,778,943.97/x
  3. Step 3: Cross multiply
    71,540,267.95x = 98,746,978.91 × 41,778,943.97
  4. Step 4: Simplify right side
    71,540,267.95x = 4,125,544,499,154,078
  5. Step 5: Solve for x
    x = 4,125,544,499,154,078/71,540,267.95
  6. Step 6: Final answer
    x = 57,667,445.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.