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Finding the Fourth Proportional to 55,369,781.80, 83,054,672.70 and 26,608,982.20

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Solution

The fourth proportional to 55,369,781.80, 83,054,672.70 and 26,608,982.20 is: 39,913,473.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,369,781.80 : 83,054,672.70 = 26,608,982.20 : x
  2. Step 2: Convert to fraction form
    55,369,781.80/83,054,672.70 = 26,608,982.20/x
  3. Step 3: Cross multiply
    55,369,781.80x = 83,054,672.70 × 26,608,982.20
  4. Step 4: Simplify right side
    55,369,781.80x = 2,210,000,307,501,126
  5. Step 5: Solve for x
    x = 2,210,000,307,501,126/55,369,781.80
  6. Step 6: Final answer
    x = 39,913,473.30

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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.