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Finding the Fourth Proportional to 160,048.31, 239,880.69 and 74,543.90

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Solution

The fourth proportional to 160,048.31, 239,880.69 and 74,543.90 is: 111,726.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,048.31 : 239,880.69 = 74,543.90 : x
  2. Step 2: Convert to fraction form
    160,048.31/239,880.69 = 74,543.90/x
  3. Step 3: Cross multiply
    160,048.31x = 239,880.69 × 74,543.90
  4. Step 4: Simplify right side
    160,048.31x = 17,881,640,967.89
  5. Step 5: Solve for x
    x = 17,881,640,967.89/160,048.31
  6. Step 6: Final answer
    x = 111,726.53

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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.