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Finding the Fourth Proportional to 125,988.16, 173,863.68 and 69,399.54

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Solution

The fourth proportional to 125,988.16, 173,863.68 and 69,399.54 is: 95,771.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,988.16 : 173,863.68 = 69,399.54 : x
  2. Step 2: Convert to fraction form
    125,988.16/173,863.68 = 69,399.54/x
  3. Step 3: Cross multiply
    125,988.16x = 173,863.68 × 69,399.54
  4. Step 4: Simplify right side
    125,988.16x = 12,066,059,414.71
  5. Step 5: Solve for x
    x = 12,066,059,414.71/125,988.16
  6. Step 6: Final answer
    x = 95,771.38

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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.