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Finding the Fourth Proportional to 153,912.32, 230,782.08 and 54,044.72

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Solution

The fourth proportional to 153,912.32, 230,782.08 and 54,044.72 is: 81,036.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,912.32 : 230,782.08 = 54,044.72 : x
  2. Step 2: Convert to fraction form
    153,912.32/230,782.08 = 54,044.72/x
  3. Step 3: Cross multiply
    153,912.32x = 230,782.08 × 54,044.72
  4. Step 4: Simplify right side
    153,912.32x = 12,472,552,894.62
  5. Step 5: Solve for x
    x = 12,472,552,894.62/153,912.32
  6. Step 6: Final answer
    x = 81,036.74

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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.