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Finding the Fourth Proportional to 71,282,855.54, 98,414,769.13 and 48,994,220.00

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Solution

The fourth proportional to 71,282,855.54, 98,414,769.13 and 48,994,220.00 is: 67,642,560.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,282,855.54 : 98,414,769.13 = 48,994,220.00 : x
  2. Step 2: Convert to fraction form
    71,282,855.54/98,414,769.13 = 48,994,220.00/x
  3. Step 3: Cross multiply
    71,282,855.54x = 98,414,769.13 × 48,994,220.00
  4. Step 4: Simplify right side
    71,282,855.54x = 4,821,754,850,127,980
  5. Step 5: Solve for x
    x = 4,821,754,850,127,980/71,282,855.54
  6. Step 6: Final answer
    x = 67,642,560.24

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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.