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Finding the Fourth Proportional to 187,358.88, 258,564.72 and 110,921.84

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Solution

The fourth proportional to 187,358.88, 258,564.72 and 110,921.84 is: 153,077.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,358.88 : 258,564.72 = 110,921.84 : x
  2. Step 2: Convert to fraction form
    187,358.88/258,564.72 = 110,921.84/x
  3. Step 3: Cross multiply
    187,358.88x = 258,564.72 × 110,921.84
  4. Step 4: Simplify right side
    187,358.88x = 28,680,474,501.48
  5. Step 5: Solve for x
    x = 28,680,474,501.48/187,358.88
  6. Step 6: Final answer
    x = 153,077.74

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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.