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Finding the Fourth Proportional to 158,487.90, 237,731.46 and 40,158.90

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Solution

The fourth proportional to 158,487.90, 237,731.46 and 40,158.90 is: 60,238.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,487.90 : 237,731.46 = 40,158.90 : x
  2. Step 2: Convert to fraction form
    158,487.90/237,731.46 = 40,158.90/x
  3. Step 3: Cross multiply
    158,487.90x = 237,731.46 × 40,158.90
  4. Step 4: Simplify right side
    158,487.90x = 9,547,033,928.99
  5. Step 5: Solve for x
    x = 9,547,033,928.99/158,487.90
  6. Step 6: Final answer
    x = 60,238.25

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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.