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Finding the Fourth Proportional to 159,987.51, 239,981.28 and 41,658.51

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Solution

The fourth proportional to 159,987.51, 239,981.28 and 41,658.51 is: 62,487.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,987.51 : 239,981.28 = 41,658.51 : x
  2. Step 2: Convert to fraction form
    159,987.51/239,981.28 = 41,658.51/x
  3. Step 3: Cross multiply
    159,987.51x = 239,981.28 × 41,658.51
  4. Step 4: Simplify right side
    159,987.51x = 9,997,262,552.69
  5. Step 5: Solve for x
    x = 9,997,262,552.69/159,987.51
  6. Step 6: Final answer
    x = 62,487.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.