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Finding the Fourth Proportional to 73,793,312.80, 110,689,969.20 and 69,612,935.20

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Solution

The fourth proportional to 73,793,312.80, 110,689,969.20 and 69,612,935.20 is: 104,419,402.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,793,312.80 : 110,689,969.20 = 69,612,935.20 : x
  2. Step 2: Convert to fraction form
    73,793,312.80/110,689,969.20 = 69,612,935.20/x
  3. Step 3: Cross multiply
    73,793,312.80x = 110,689,969.20 × 69,612,935.20
  4. Step 4: Simplify right side
    73,793,312.80x = 7,705,453,653,209,596
  5. Step 5: Solve for x
    x = 7,705,453,653,209,596/73,793,312.80
  6. Step 6: Final answer
    x = 104,419,402.80

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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.