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Finding the Fourth Proportional to 185,323.34, 255,746.16 and 100,440.42

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Solution

The fourth proportional to 185,323.34, 255,746.16 and 100,440.42 is: 138,607.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,323.34 : 255,746.16 = 100,440.42 : x
  2. Step 2: Convert to fraction form
    185,323.34/255,746.16 = 100,440.42/x
  3. Step 3: Cross multiply
    185,323.34x = 255,746.16 × 100,440.42
  4. Step 4: Simplify right side
    185,323.34x = 25,687,251,723.79
  5. Step 5: Solve for x
    x = 25,687,251,723.79/185,323.34
  6. Step 6: Final answer
    x = 138,607.75

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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.