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Finding the Fourth Proportional to 106,591.50, 147,079.53 and 61,260.75

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Solution

The fourth proportional to 106,591.50, 147,079.53 and 61,260.75 is: 84,530.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,591.50 : 147,079.53 = 61,260.75 : x
  2. Step 2: Convert to fraction form
    106,591.50/147,079.53 = 61,260.75/x
  3. Step 3: Cross multiply
    106,591.50x = 147,079.53 × 61,260.75
  4. Step 4: Simplify right side
    106,591.50x = 9,010,202,317.45
  5. Step 5: Solve for x
    x = 9,010,202,317.45/106,591.50
  6. Step 6: Final answer
    x = 84,530.21

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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.