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Finding the Fourth Proportional to 153,438.72, 230,065.92 and 59,988.48

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Solution

The fourth proportional to 153,438.72, 230,065.92 and 59,988.48 is: 89,946.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,438.72 : 230,065.92 = 59,988.48 : x
  2. Step 2: Convert to fraction form
    153,438.72/230,065.92 = 59,988.48/x
  3. Step 3: Cross multiply
    153,438.72x = 230,065.92 × 59,988.48
  4. Step 4: Simplify right side
    153,438.72x = 13,801,304,840.60
  5. Step 5: Solve for x
    x = 13,801,304,840.60/153,438.72
  6. Step 6: Final answer
    x = 89,946.69

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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.