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Finding the Fourth Proportional to 66,049,607.80, 99,074,411.70 and 27,738,616.60

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Solution

The fourth proportional to 66,049,607.80, 99,074,411.70 and 27,738,616.60 is: 41,607,924.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,049,607.80 : 99,074,411.70 = 27,738,616.60 : x
  2. Step 2: Convert to fraction form
    66,049,607.80/99,074,411.70 = 27,738,616.60/x
  3. Step 3: Cross multiply
    66,049,607.80x = 99,074,411.70 × 27,738,616.60
  4. Step 4: Simplify right side
    66,049,607.80x = 2,748,187,121,016,854.50
  5. Step 5: Solve for x
    x = 2,748,187,121,016,854.50/66,049,607.80
  6. Step 6: Final answer
    x = 41,607,924.90

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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.