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Finding the Fourth Proportional to 163,814.40, 225,922.56 and 127,948.80

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Solution

The fourth proportional to 163,814.40, 225,922.56 and 127,948.80 is: 176,458.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,814.40 : 225,922.56 = 127,948.80 : x
  2. Step 2: Convert to fraction form
    163,814.40/225,922.56 = 127,948.80/x
  3. Step 3: Cross multiply
    163,814.40x = 225,922.56 × 127,948.80
  4. Step 4: Simplify right side
    163,814.40x = 28,906,520,444.93
  5. Step 5: Solve for x
    x = 28,906,520,444.93/163,814.40
  6. Step 6: Final answer
    x = 176,458.97

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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.