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Finding the Fourth Proportional to 185,358.40, 278,049.36 and 65,400.40

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Solution

The fourth proportional to 185,358.40, 278,049.36 and 65,400.40 is: 98,104.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,358.40 : 278,049.36 = 65,400.40 : x
  2. Step 2: Convert to fraction form
    185,358.40/278,049.36 = 65,400.40/x
  3. Step 3: Cross multiply
    185,358.40x = 278,049.36 × 65,400.40
  4. Step 4: Simplify right side
    185,358.40x = 18,184,539,363.74
  5. Step 5: Solve for x
    x = 18,184,539,363.74/185,358.40
  6. Step 6: Final answer
    x = 98,104.75

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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.