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Finding the Fourth Proportional to 180,627.64, 270,842.70 and 143,426.68

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Solution

The fourth proportional to 180,627.64, 270,842.70 and 143,426.68 is: 215,061.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,627.64 : 270,842.70 = 143,426.68 : x
  2. Step 2: Convert to fraction form
    180,627.64/270,842.70 = 143,426.68/x
  3. Step 3: Cross multiply
    180,627.64x = 270,842.70 × 143,426.68
  4. Step 4: Simplify right side
    180,627.64x = 38,846,069,263.24
  5. Step 5: Solve for x
    x = 38,846,069,263.24/180,627.64
  6. Step 6: Final answer
    x = 215,061.60

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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.