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Finding the Fourth Proportional to 265,780.55, 366,763.67 and 144,920.86

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Solution

The fourth proportional to 265,780.55, 366,763.67 and 144,920.86 is: 199,983.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,780.55 : 366,763.67 = 144,920.86 : x
  2. Step 2: Convert to fraction form
    265,780.55/366,763.67 = 144,920.86/x
  3. Step 3: Cross multiply
    265,780.55x = 366,763.67 × 144,920.86
  4. Step 4: Simplify right side
    265,780.55x = 53,151,706,473.16
  5. Step 5: Solve for x
    x = 53,151,706,473.16/265,780.55
  6. Step 6: Final answer
    x = 199,983.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.