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Finding the Fourth Proportional to 185,901.62, 256,543.54 and 105,344.54

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Solution

The fourth proportional to 185,901.62, 256,543.54 and 105,344.54 is: 145,375.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,901.62 : 256,543.54 = 105,344.54 : x
  2. Step 2: Convert to fraction form
    185,901.62/256,543.54 = 105,344.54/x
  3. Step 3: Cross multiply
    185,901.62x = 256,543.54 × 105,344.54
  4. Step 4: Simplify right side
    185,901.62x = 27,025,461,211.27
  5. Step 5: Solve for x
    x = 27,025,461,211.27/185,901.62
  6. Step 6: Final answer
    x = 145,375.07

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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.