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Finding the Fourth Proportional to 247,051.86, 340,806.37 and 156,254.91

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Solution

The fourth proportional to 247,051.86, 340,806.37 and 156,254.91 is: 215,552.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,051.86 : 340,806.37 = 156,254.91 : x
  2. Step 2: Convert to fraction form
    247,051.86/340,806.37 = 156,254.91/x
  3. Step 3: Cross multiply
    247,051.86x = 340,806.37 × 156,254.91
  4. Step 4: Simplify right side
    247,051.86x = 53,252,668,671.78
  5. Step 5: Solve for x
    x = 53,252,668,671.78/247,051.86
  6. Step 6: Final answer
    x = 215,552.59

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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.