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Finding the Fourth Proportional to 360,062.28, 540,159.12 and 123,428.88

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Solution

The fourth proportional to 360,062.28, 540,159.12 and 123,428.88 is: 185,165.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,062.28 : 540,159.12 = 123,428.88 : x
  2. Step 2: Convert to fraction form
    360,062.28/540,159.12 = 123,428.88/x
  3. Step 3: Cross multiply
    360,062.28x = 540,159.12 × 123,428.88
  4. Step 4: Simplify right side
    360,062.28x = 66,671,235,203.39
  5. Step 5: Solve for x
    x = 66,671,235,203.39/360,062.28
  6. Step 6: Final answer
    x = 185,165.84

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1.5x scale

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.