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Finding the Fourth Proportional to 210,854.79, 316,246.95 and 92,494.35

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Solution

The fourth proportional to 210,854.79, 316,246.95 and 92,494.35 is: 138,726.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,854.79 : 316,246.95 = 92,494.35 : x
  2. Step 2: Convert to fraction form
    210,854.79/316,246.95 = 92,494.35/x
  3. Step 3: Cross multiply
    210,854.79x = 316,246.95 × 92,494.35
  4. Step 4: Simplify right side
    210,854.79x = 29,251,056,079.73
  5. Step 5: Solve for x
    x = 29,251,056,079.73/210,854.79
  6. Step 6: Final answer
    x = 138,726.07

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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.