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Finding the Fourth Proportional to 158,214.40, 237,244.80 and 88,019.20

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Solution

The fourth proportional to 158,214.40, 237,244.80 and 88,019.20 is: 131,986.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,214.40 : 237,244.80 = 88,019.20 : x
  2. Step 2: Convert to fraction form
    158,214.40/237,244.80 = 88,019.20/x
  3. Step 3: Cross multiply
    158,214.40x = 237,244.80 × 88,019.20
  4. Step 4: Simplify right side
    158,214.40x = 20,882,097,500.16
  5. Step 5: Solve for x
    x = 20,882,097,500.16/158,214.40
  6. Step 6: Final answer
    x = 131,986.07

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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.