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Finding the Fourth Proportional to 115,975.60, 173,833.80 and 66,079.60

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Solution

The fourth proportional to 115,975.60, 173,833.80 and 66,079.60 is: 99,045.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,975.60 : 173,833.80 = 66,079.60 : x
  2. Step 2: Convert to fraction form
    115,975.60/173,833.80 = 66,079.60/x
  3. Step 3: Cross multiply
    115,975.60x = 173,833.80 × 66,079.60
  4. Step 4: Simplify right side
    115,975.60x = 11,486,867,970.48
  5. Step 5: Solve for x
    x = 11,486,867,970.48/115,975.60
  6. Step 6: Final answer
    x = 99,045.56

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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.