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Finding the Fourth Proportional to 225,247.61, 337,871.40 and 103,655.87

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Solution

The fourth proportional to 225,247.61, 337,871.40 and 103,655.87 is: 155,483.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,247.61 : 337,871.40 = 103,655.87 : x
  2. Step 2: Convert to fraction form
    225,247.61/337,871.40 = 103,655.87/x
  3. Step 3: Cross multiply
    225,247.61x = 337,871.40 × 103,655.87
  4. Step 4: Simplify right side
    225,247.61x = 35,022,352,225.76
  5. Step 5: Solve for x
    x = 35,022,352,225.76/225,247.61
  6. Step 6: Final answer
    x = 155,483.79

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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.