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Finding the Fourth Proportional to 239,139.64, 357,866.64 and 149,224.71

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Solution

The fourth proportional to 239,139.64, 357,866.64 and 149,224.71 is: 223,311.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,139.64 : 357,866.64 = 149,224.71 : x
  2. Step 2: Convert to fraction form
    239,139.64/357,866.64 = 149,224.71/x
  3. Step 3: Cross multiply
    239,139.64x = 357,866.64 × 149,224.71
  4. Step 4: Simplify right side
    239,139.64x = 53,402,543,895.17
  5. Step 5: Solve for x
    x = 53,402,543,895.17/239,139.64
  6. Step 6: Final answer
    x = 223,311.13

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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.