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Finding the Fourth Proportional to 109,894.86, 151,644.68 and 62,148.06

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Solution

The fourth proportional to 109,894.86, 151,644.68 and 62,148.06 is: 85,758.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,894.86 : 151,644.68 = 62,148.06 : x
  2. Step 2: Convert to fraction form
    109,894.86/151,644.68 = 62,148.06/x
  3. Step 3: Cross multiply
    109,894.86x = 151,644.68 × 62,148.06
  4. Step 4: Simplify right side
    109,894.86x = 9,424,422,671.32
  5. Step 5: Solve for x
    x = 9,424,422,671.32/109,894.86
  6. Step 6: Final answer
    x = 85,758.54

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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.