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Finding the Fourth Proportional to 124,365.80, 171,652.50 and 79,034.94

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Solution

The fourth proportional to 124,365.80, 171,652.50 and 79,034.94 is: 109,085.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,365.80 : 171,652.50 = 79,034.94 : x
  2. Step 2: Convert to fraction form
    124,365.80/171,652.50 = 79,034.94/x
  3. Step 3: Cross multiply
    124,365.80x = 171,652.50 × 79,034.94
  4. Step 4: Simplify right side
    124,365.80x = 13,566,545,038.35
  5. Step 5: Solve for x
    x = 13,566,545,038.35/124,365.80
  6. Step 6: Final answer
    x = 109,085.82

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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.