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Finding the Fourth Proportional to 178,417.40, 267,399.30 and 73,117.40

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Solution

The fourth proportional to 178,417.40, 267,399.30 and 73,117.40 is: 109,583.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,417.40 : 267,399.30 = 73,117.40 : x
  2. Step 2: Convert to fraction form
    178,417.40/267,399.30 = 73,117.40/x
  3. Step 3: Cross multiply
    178,417.40x = 267,399.30 × 73,117.40
  4. Step 4: Simplify right side
    178,417.40x = 19,551,541,577.82
  5. Step 5: Solve for x
    x = 19,551,541,577.82/178,417.40
  6. Step 6: Final answer
    x = 109,583.15

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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.