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Finding the Fourth Proportional to 224,039.16, 309,174.12 and 123,437.16

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Solution

The fourth proportional to 224,039.16, 309,174.12 and 123,437.16 is: 170,343.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,039.16 : 309,174.12 = 123,437.16 : x
  2. Step 2: Convert to fraction form
    224,039.16/309,174.12 = 123,437.16/x
  3. Step 3: Cross multiply
    224,039.16x = 309,174.12 × 123,437.16
  4. Step 4: Simplify right side
    224,039.16x = 38,163,575,318.30
  5. Step 5: Solve for x
    x = 38,163,575,318.30/224,039.16
  6. Step 6: Final answer
    x = 170,343.32

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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.