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Finding the Fourth Proportional to 872,167.80, 1,308,251.70 and 872,167.80

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Solution

The fourth proportional to 872,167.80, 1,308,251.70 and 872,167.80 is: 1,308,251.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,167.80 : 1,308,251.70 = 872,167.80 : x
  2. Step 2: Convert to fraction form
    872,167.80/1,308,251.70 = 872,167.80/x
  3. Step 3: Cross multiply
    872,167.80x = 1,308,251.70 × 872,167.80
  4. Step 4: Simplify right side
    872,167.80x = 1,141,015,007,035.26
  5. Step 5: Solve for x
    x = 1,141,015,007,035.26/872,167.80
  6. Step 6: Final answer
    x = 1,308,251.70

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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.