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Finding the Fourth Proportional to 144,058.60, 215,915.10 and 73,901.80

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Solution

The fourth proportional to 144,058.60, 215,915.10 and 73,901.80 is: 110,764.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,058.60 : 215,915.10 = 73,901.80 : x
  2. Step 2: Convert to fraction form
    144,058.60/215,915.10 = 73,901.80/x
  3. Step 3: Cross multiply
    144,058.60x = 215,915.10 × 73,901.80
  4. Step 4: Simplify right side
    144,058.60x = 15,956,514,537.18
  5. Step 5: Solve for x
    x = 15,956,514,537.18/144,058.60
  6. Step 6: Final answer
    x = 110,764.05

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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.