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Finding the Fourth Proportional to 124,296.40, 186,444.60 and 120,840.40

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Solution

The fourth proportional to 124,296.40, 186,444.60 and 120,840.40 is: 181,260.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,296.40 : 186,444.60 = 120,840.40 : x
  2. Step 2: Convert to fraction form
    124,296.40/186,444.60 = 120,840.40/x
  3. Step 3: Cross multiply
    124,296.40x = 186,444.60 × 120,840.40
  4. Step 4: Simplify right side
    124,296.40x = 22,530,040,041.84
  5. Step 5: Solve for x
    x = 22,530,040,041.84/124,296.40
  6. Step 6: Final answer
    x = 181,260.60

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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.