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Finding the Fourth Proportional to 123,065.60, 184,598.40 and 67,078.40

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Solution

The fourth proportional to 123,065.60, 184,598.40 and 67,078.40 is: 100,617.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,065.60 : 184,598.40 = 67,078.40 : x
  2. Step 2: Convert to fraction form
    123,065.60/184,598.40 = 67,078.40/x
  3. Step 3: Cross multiply
    123,065.60x = 184,598.40 × 67,078.40
  4. Step 4: Simplify right side
    123,065.60x = 12,382,565,314.56
  5. Step 5: Solve for x
    x = 12,382,565,314.56/123,065.60
  6. Step 6: Final answer
    x = 100,617.60

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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.