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Finding the Fourth Proportional to 185,359.40, 278,050.86 and 65,401.40

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Solution

The fourth proportional to 185,359.40, 278,050.86 and 65,401.40 is: 98,106.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,359.40 : 278,050.86 = 65,401.40 : x
  2. Step 2: Convert to fraction form
    185,359.40/278,050.86 = 65,401.40/x
  3. Step 3: Cross multiply
    185,359.40x = 278,050.86 × 65,401.40
  4. Step 4: Simplify right side
    185,359.40x = 18,184,915,515.20
  5. Step 5: Solve for x
    x = 18,184,915,515.20/185,359.40
  6. Step 6: Final answer
    x = 98,106.25

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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.