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Finding the Fourth Proportional to 180,612.54, 270,820.17 and 143,411.58

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Solution

The fourth proportional to 180,612.54, 270,820.17 and 143,411.58 is: 215,039.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,612.54 : 270,820.17 = 143,411.58 : x
  2. Step 2: Convert to fraction form
    180,612.54/270,820.17 = 143,411.58/x
  3. Step 3: Cross multiply
    180,612.54x = 270,820.17 × 143,411.58
  4. Step 4: Simplify right side
    180,612.54x = 38,838,748,475.57
  5. Step 5: Solve for x
    x = 38,838,748,475.57/180,612.54
  6. Step 6: Final answer
    x = 215,039.05

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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.