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Finding the Fourth Proportional to 144,618.78, 199,568.08 and 84,191.16

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Solution

The fourth proportional to 144,618.78, 199,568.08 and 84,191.16 is: 116,180.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,618.78 : 199,568.08 = 84,191.16 : x
  2. Step 2: Convert to fraction form
    144,618.78/199,568.08 = 84,191.16/x
  3. Step 3: Cross multiply
    144,618.78x = 199,568.08 × 84,191.16
  4. Step 4: Simplify right side
    144,618.78x = 16,801,868,154.17
  5. Step 5: Solve for x
    x = 16,801,868,154.17/144,618.78
  6. Step 6: Final answer
    x = 116,180.40

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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.