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Finding the Fourth Proportional to 103,344.16, 154,886.16 and 55,957.36

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Solution

The fourth proportional to 103,344.16, 154,886.16 and 55,957.36 is: 83,865.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,344.16 : 154,886.16 = 55,957.36 : x
  2. Step 2: Convert to fraction form
    103,344.16/154,886.16 = 55,957.36/x
  3. Step 3: Cross multiply
    103,344.16x = 154,886.16 × 55,957.36
  4. Step 4: Simplify right side
    103,344.16x = 8,667,020,614.14
  5. Step 5: Solve for x
    x = 8,667,020,614.14/103,344.16
  6. Step 6: Final answer
    x = 83,865.61

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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.