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Finding the Fourth Proportional to 224,962.74, 310,448.54 and 122,988.66

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Solution

The fourth proportional to 224,962.74, 310,448.54 and 122,988.66 is: 169,724.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,962.74 : 310,448.54 = 122,988.66 : x
  2. Step 2: Convert to fraction form
    224,962.74/310,448.54 = 122,988.66/x
  3. Step 3: Cross multiply
    224,962.74x = 310,448.54 × 122,988.66
  4. Step 4: Simplify right side
    224,962.74x = 38,181,649,318.61
  5. Step 5: Solve for x
    x = 38,181,649,318.61/224,962.74
  6. Step 6: Final answer
    x = 169,724.33

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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.