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Finding the Fourth Proportional to 185,393.18, 255,842.88 and 100,510.44

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Solution

The fourth proportional to 185,393.18, 255,842.88 and 100,510.44 is: 138,704.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,393.18 : 255,842.88 = 100,510.44 : x
  2. Step 2: Convert to fraction form
    185,393.18/255,842.88 = 100,510.44/x
  3. Step 3: Cross multiply
    185,393.18x = 255,842.88 × 100,510.44
  4. Step 4: Simplify right side
    185,393.18x = 25,714,880,439.67
  5. Step 5: Solve for x
    x = 25,714,880,439.67/185,393.18
  6. Step 6: Final answer
    x = 138,704.57

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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.