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Finding the Fourth Proportional to 91,189.60, 125,898.54 and 58,941.10

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Solution

The fourth proportional to 91,189.60, 125,898.54 and 58,941.10 is: 81,375.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,189.60 : 125,898.54 = 58,941.10 : x
  2. Step 2: Convert to fraction form
    91,189.60/125,898.54 = 58,941.10/x
  3. Step 3: Cross multiply
    91,189.60x = 125,898.54 × 58,941.10
  4. Step 4: Simplify right side
    91,189.60x = 7,420,598,435.99
  5. Step 5: Solve for x
    x = 7,420,598,435.99/91,189.60
  6. Step 6: Final answer
    x = 81,375.49

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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.