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Finding the Fourth Proportional to 124,376.80, 186,168.30 and 98,132.80

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Solution

The fourth proportional to 124,376.80, 186,168.30 and 98,132.80 is: 146,886.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,376.80 : 186,168.30 = 98,132.80 : x
  2. Step 2: Convert to fraction form
    124,376.80/186,168.30 = 98,132.80/x
  3. Step 3: Cross multiply
    124,376.80x = 186,168.30 × 98,132.80
  4. Step 4: Simplify right side
    124,376.80x = 18,269,216,550.24
  5. Step 5: Solve for x
    x = 18,269,216,550.24/124,376.80
  6. Step 6: Final answer
    x = 146,886.05

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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.