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Finding the Fourth Proportional to 158,502.40, 237,676.80 and 88,307.20

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Solution

The fourth proportional to 158,502.40, 237,676.80 and 88,307.20 is: 132,418.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,502.40 : 237,676.80 = 88,307.20 : x
  2. Step 2: Convert to fraction form
    158,502.40/237,676.80 = 88,307.20/x
  3. Step 3: Cross multiply
    158,502.40x = 237,676.80 × 88,307.20
  4. Step 4: Simplify right side
    158,502.40x = 20,988,572,712.96
  5. Step 5: Solve for x
    x = 20,988,572,712.96/158,502.40
  6. Step 6: Final answer
    x = 132,418.01

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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.