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Finding the Fourth Proportional to 158,266.60, 236,939.10 and 153,658.60

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Solution

The fourth proportional to 158,266.60, 236,939.10 and 153,658.60 is: 230,040.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,266.60 : 236,939.10 = 153,658.60 : x
  2. Step 2: Convert to fraction form
    158,266.60/236,939.10 = 153,658.60/x
  3. Step 3: Cross multiply
    158,266.60x = 236,939.10 × 153,658.60
  4. Step 4: Simplify right side
    158,266.60x = 36,407,730,391.26
  5. Step 5: Solve for x
    x = 36,407,730,391.26/158,266.60
  6. Step 6: Final answer
    x = 230,040.52

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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.