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Finding the Fourth Proportional to 227,987.74, 314,624.31 and 124,622.07

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Solution

The fourth proportional to 227,987.74, 314,624.31 and 124,622.07 is: 171,979.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,987.74 : 314,624.31 = 124,622.07 : x
  2. Step 2: Convert to fraction form
    227,987.74/314,624.31 = 124,622.07/x
  3. Step 3: Cross multiply
    227,987.74x = 314,624.31 × 124,622.07
  4. Step 4: Simplify right side
    227,987.74x = 39,209,133,608.11
  5. Step 5: Solve for x
    x = 39,209,133,608.11/227,987.74
  6. Step 6: Final answer
    x = 171,979.14

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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.