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Finding the Fourth Proportional to 125,003.68, 187,286.76 and 104,078.14

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Solution

The fourth proportional to 125,003.68, 187,286.76 and 104,078.14 is: 155,935.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,003.68 : 187,286.76 = 104,078.14 : x
  2. Step 2: Convert to fraction form
    125,003.68/187,286.76 = 104,078.14/x
  3. Step 3: Cross multiply
    125,003.68x = 187,286.76 × 104,078.14
  4. Step 4: Simplify right side
    125,003.68x = 19,492,457,627.43
  5. Step 5: Solve for x
    x = 19,492,457,627.43/125,003.68
  6. Step 6: Final answer
    x = 155,935.07

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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.