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Finding the Fourth Proportional to 187,802.64, 259,121.28 and 111,339.66

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Solution

The fourth proportional to 187,802.64, 259,121.28 and 111,339.66 is: 153,621.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,802.64 : 259,121.28 = 111,339.66 : x
  2. Step 2: Convert to fraction form
    187,802.64/259,121.28 = 111,339.66/x
  3. Step 3: Cross multiply
    187,802.64x = 259,121.28 × 111,339.66
  4. Step 4: Simplify right side
    187,802.64x = 28,850,475,213.96
  5. Step 5: Solve for x
    x = 28,850,475,213.96/187,802.64
  6. Step 6: Final answer
    x = 153,621.24

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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.