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Finding the Fourth Proportional to 185,697.32, 256,265.42 and 100,814.39

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Solution

The fourth proportional to 185,697.32, 256,265.42 and 100,814.39 is: 139,125.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,697.32 : 256,265.42 = 100,814.39 : x
  2. Step 2: Convert to fraction form
    185,697.32/256,265.42 = 100,814.39/x
  3. Step 3: Cross multiply
    185,697.32x = 256,265.42 × 100,814.39
  4. Step 4: Simplify right side
    185,697.32x = 25,835,241,491.32
  5. Step 5: Solve for x
    x = 25,835,241,491.32/185,697.32
  6. Step 6: Final answer
    x = 139,125.55

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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.