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Finding the Fourth Proportional to 225,139.76, 337,756.76 and 84,897.36

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Solution

The fourth proportional to 225,139.76, 337,756.76 and 84,897.36 is: 127,363.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,139.76 : 337,756.76 = 84,897.36 : x
  2. Step 2: Convert to fraction form
    225,139.76/337,756.76 = 84,897.36/x
  3. Step 3: Cross multiply
    225,139.76x = 337,756.76 × 84,897.36
  4. Step 4: Simplify right side
    225,139.76x = 28,674,657,246.15
  5. Step 5: Solve for x
    x = 28,674,657,246.15/225,139.76
  6. Step 6: Final answer
    x = 127,363.81

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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.