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Finding the Fourth Proportional to 180,882.60, 249,355.78 and 127,003.56

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Solution

The fourth proportional to 180,882.60, 249,355.78 and 127,003.56 is: 175,080.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,882.60 : 249,355.78 = 127,003.56 : x
  2. Step 2: Convert to fraction form
    180,882.60/249,355.78 = 127,003.56/x
  3. Step 3: Cross multiply
    180,882.60x = 249,355.78 × 127,003.56
  4. Step 4: Simplify right side
    180,882.60x = 31,669,071,766.58
  5. Step 5: Solve for x
    x = 31,669,071,766.58/180,882.60
  6. Step 6: Final answer
    x = 175,080.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.