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Finding the Fourth Proportional to 148,166.60, 222,347.10 and 84,986.60

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Solution

The fourth proportional to 148,166.60, 222,347.10 and 84,986.60 is: 127,535.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,166.60 : 222,347.10 = 84,986.60 : x
  2. Step 2: Convert to fraction form
    148,166.60/222,347.10 = 84,986.60/x
  3. Step 3: Cross multiply
    148,166.60x = 222,347.10 × 84,986.60
  4. Step 4: Simplify right side
    148,166.60x = 18,896,524,048.86
  5. Step 5: Solve for x
    x = 18,896,524,048.86/148,166.60
  6. Step 6: Final answer
    x = 127,535.65

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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.