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Finding the Fourth Proportional to 124,274.88, 171,379.52 and 83,530.88

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Solution

The fourth proportional to 124,274.88, 171,379.52 and 83,530.88 is: 115,192.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,274.88 : 171,379.52 = 83,530.88 : x
  2. Step 2: Convert to fraction form
    124,274.88/171,379.52 = 83,530.88/x
  3. Step 3: Cross multiply
    124,274.88x = 171,379.52 × 83,530.88
  4. Step 4: Simplify right side
    124,274.88x = 14,315,482,119.58
  5. Step 5: Solve for x
    x = 14,315,482,119.58/124,274.88
  6. Step 6: Final answer
    x = 115,192.08

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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.