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Finding the Fourth Proportional to 52,787,920.80, 79,181,881.20 and 44,284,864.80

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Solution

The fourth proportional to 52,787,920.80, 79,181,881.20 and 44,284,864.80 is: 66,427,297.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,787,920.80 : 79,181,881.20 = 44,284,864.80 : x
  2. Step 2: Convert to fraction form
    52,787,920.80/79,181,881.20 = 44,284,864.80/x
  3. Step 3: Cross multiply
    52,787,920.80x = 79,181,881.20 × 44,284,864.80
  4. Step 4: Simplify right side
    52,787,920.80x = 3,506,558,903,551,661.50
  5. Step 5: Solve for x
    x = 3,506,558,903,551,661.50/52,787,920.80
  6. Step 6: Final answer
    x = 66,427,297.20

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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.