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Finding the Fourth Proportional to 185,818.60, 256,429.62 and 100,935.58

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Solution

The fourth proportional to 185,818.60, 256,429.62 and 100,935.58 is: 139,291.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,818.60 : 256,429.62 = 100,935.58 : x
  2. Step 2: Convert to fraction form
    185,818.60/256,429.62 = 100,935.58/x
  3. Step 3: Cross multiply
    185,818.60x = 256,429.62 × 100,935.58
  4. Step 4: Simplify right side
    185,818.60x = 25,882,872,423.88
  5. Step 5: Solve for x
    x = 25,882,872,423.88/185,818.60
  6. Step 6: Final answer
    x = 139,291.07

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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.