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Finding the Fourth Proportional to 178,126.40, 267,232.80 and 125,638.40

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Solution

The fourth proportional to 178,126.40, 267,232.80 and 125,638.40 is: 188,488.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,126.40 : 267,232.80 = 125,638.40 : x
  2. Step 2: Convert to fraction form
    178,126.40/267,232.80 = 125,638.40/x
  3. Step 3: Cross multiply
    178,126.40x = 267,232.80 × 125,638.40
  4. Step 4: Simplify right side
    178,126.40x = 33,574,701,419.52
  5. Step 5: Solve for x
    x = 33,574,701,419.52/178,126.40
  6. Step 6: Final answer
    x = 188,488.07

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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.