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Finding the Fourth Proportional to 499,980.92, 750,116.61 and 180,126.71

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Solution

The fourth proportional to 499,980.92, 750,116.61 and 180,126.71 is: 270,242.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,980.92 : 750,116.61 = 180,126.71 : x
  2. Step 2: Convert to fraction form
    499,980.92/750,116.61 = 180,126.71/x
  3. Step 3: Cross multiply
    499,980.92x = 750,116.61 × 180,126.71
  4. Step 4: Simplify right side
    499,980.92x = 135,116,033,325.07
  5. Step 5: Solve for x
    x = 135,116,033,325.07/499,980.92
  6. Step 6: Final answer
    x = 270,242.38

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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.