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Finding the Fourth Proportional to 330,339.74, 495,502.88 and 105,700.14

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Solution

The fourth proportional to 330,339.74, 495,502.88 and 105,700.14 is: 158,548.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,339.74 : 495,502.88 = 105,700.14 : x
  2. Step 2: Convert to fraction form
    330,339.74/495,502.88 = 105,700.14/x
  3. Step 3: Cross multiply
    330,339.74x = 495,502.88 × 105,700.14
  4. Step 4: Simplify right side
    330,339.74x = 52,374,723,257.90
  5. Step 5: Solve for x
    x = 52,374,723,257.90/330,339.74
  6. Step 6: Final answer
    x = 158,548.06

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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.