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Finding the Fourth Proportional to 354,565.56, 531,853.02 and 117,908.28

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Solution

The fourth proportional to 354,565.56, 531,853.02 and 117,908.28 is: 176,863.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,565.56 : 531,853.02 = 117,908.28 : x
  2. Step 2: Convert to fraction form
    354,565.56/531,853.02 = 117,908.28/x
  3. Step 3: Cross multiply
    354,565.56x = 531,853.02 × 117,908.28
  4. Step 4: Simplify right side
    354,565.56x = 62,709,874,801.01
  5. Step 5: Solve for x
    x = 62,709,874,801.01/354,565.56
  6. Step 6: Final answer
    x = 176,863.98

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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.