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Finding the Fourth Proportional to 141,208.67, 194,869.20 and 77,546.90

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Solution

The fourth proportional to 141,208.67, 194,869.20 and 77,546.90 is: 107,015.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,208.67 : 194,869.20 = 77,546.90 : x
  2. Step 2: Convert to fraction form
    141,208.67/194,869.20 = 77,546.90/x
  3. Step 3: Cross multiply
    141,208.67x = 194,869.20 × 77,546.90
  4. Step 4: Simplify right side
    141,208.67x = 15,111,502,365.48
  5. Step 5: Solve for x
    x = 15,111,502,365.48/141,208.67
  6. Step 6: Final answer
    x = 107,015.40

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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.