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Finding the Fourth Proportional to 112,990.93, 155,927.03 and 62,004.51

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Solution

The fourth proportional to 112,990.93, 155,927.03 and 62,004.51 is: 85,565.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,990.93 : 155,927.03 = 62,004.51 : x
  2. Step 2: Convert to fraction form
    112,990.93/155,927.03 = 62,004.51/x
  3. Step 3: Cross multiply
    112,990.93x = 155,927.03 × 62,004.51
  4. Step 4: Simplify right side
    112,990.93x = 9,668,178,780.88
  5. Step 5: Solve for x
    x = 9,668,178,780.88/112,990.93
  6. Step 6: Final answer
    x = 85,565.97

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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.