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Finding the Fourth Proportional to 91,133.32, 125,696.08 and 66,926.64

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Solution

The fourth proportional to 91,133.32, 125,696.08 and 66,926.64 is: 92,308.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,133.32 : 125,696.08 = 66,926.64 : x
  2. Step 2: Convert to fraction form
    91,133.32/125,696.08 = 66,926.64/x
  3. Step 3: Cross multiply
    91,133.32x = 125,696.08 × 66,926.64
  4. Step 4: Simplify right side
    91,133.32x = 8,412,416,295.57
  5. Step 5: Solve for x
    x = 8,412,416,295.57/91,133.32
  6. Step 6: Final answer
    x = 92,308.90

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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.