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Finding the Fourth Proportional to 169,624.12, 255,287.11 and 127,721.32

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Solution

The fourth proportional to 169,624.12, 255,287.11 and 127,721.32 is: 192,222.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,624.12 : 255,287.11 = 127,721.32 : x
  2. Step 2: Convert to fraction form
    169,624.12/255,287.11 = 127,721.32/x
  3. Step 3: Cross multiply
    169,624.12x = 255,287.11 × 127,721.32
  4. Step 4: Simplify right side
    169,624.12x = 32,605,606,668.19
  5. Step 5: Solve for x
    x = 32,605,606,668.19/169,624.12
  6. Step 6: Final answer
    x = 192,222.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.