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Finding the Fourth Proportional to 224,036.48, 309,170.18 and 123,434.48

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Solution

The fourth proportional to 224,036.48, 309,170.18 and 123,434.48 is: 170,339.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,036.48 : 309,170.18 = 123,434.48 : x
  2. Step 2: Convert to fraction form
    224,036.48/309,170.18 = 123,434.48/x
  3. Step 3: Cross multiply
    224,036.48x = 309,170.18 × 123,434.48
  4. Step 4: Simplify right side
    224,036.48x = 38,162,260,399.81
  5. Step 5: Solve for x
    x = 38,162,260,399.81/224,036.48
  6. Step 6: Final answer
    x = 170,339.49

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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.