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Finding the Fourth Proportional to 73,447,788.80, 110,171,683.20 and 69,267,411.20

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Solution

The fourth proportional to 73,447,788.80, 110,171,683.20 and 69,267,411.20 is: 103,901,116.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,447,788.80 : 110,171,683.20 = 69,267,411.20 : x
  2. Step 2: Convert to fraction form
    73,447,788.80/110,171,683.20 = 69,267,411.20/x
  3. Step 3: Cross multiply
    73,447,788.80x = 110,171,683.20 × 69,267,411.20
  4. Step 4: Simplify right side
    73,447,788.80x = 7,631,307,282,810,532
  5. Step 5: Solve for x
    x = 7,631,307,282,810,532/73,447,788.80
  6. Step 6: Final answer
    x = 103,901,116.80

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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.