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Finding the Fourth Proportional to 226,578.92, 312,681.75 and 124,615.58

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Solution

The fourth proportional to 226,578.92, 312,681.75 and 124,615.58 is: 171,971.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,578.92 : 312,681.75 = 124,615.58 : x
  2. Step 2: Convert to fraction form
    226,578.92/312,681.75 = 124,615.58/x
  3. Step 3: Cross multiply
    226,578.92x = 312,681.75 × 124,615.58
  4. Step 4: Simplify right side
    226,578.92x = 38,965,017,631.67
  5. Step 5: Solve for x
    x = 38,965,017,631.67/226,578.92
  6. Step 6: Final answer
    x = 171,971.06

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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.