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Finding the Fourth Proportional to 109,863.81, 164,795.76 and 39,726.72

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Solution

The fourth proportional to 109,863.81, 164,795.76 and 39,726.72 is: 59,590.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,863.81 : 164,795.76 = 39,726.72 : x
  2. Step 2: Convert to fraction form
    109,863.81/164,795.76 = 39,726.72/x
  3. Step 3: Cross multiply
    109,863.81x = 164,795.76 × 39,726.72
  4. Step 4: Simplify right side
    109,863.81x = 6,546,795,014.71
  5. Step 5: Solve for x
    x = 6,546,795,014.71/109,863.81
  6. Step 6: Final answer
    x = 59,590.10

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1.5x scale

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.