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Finding the Fourth Proportional to 178,783.52, 267,767.04 and 85,354.88

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Solution

The fourth proportional to 178,783.52, 267,767.04 and 85,354.88 is: 127,837.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,783.52 : 267,767.04 = 85,354.88 : x
  2. Step 2: Convert to fraction form
    178,783.52/267,767.04 = 85,354.88/x
  3. Step 3: Cross multiply
    178,783.52x = 267,767.04 × 85,354.88
  4. Step 4: Simplify right side
    178,783.52x = 22,855,223,567.16
  5. Step 5: Solve for x
    x = 22,855,223,567.16/178,783.52
  6. Step 6: Final answer
    x = 127,837.42

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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.