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Finding the Fourth Proportional to 119,274.63, 164,599.34 and 65,565.15

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Solution

The fourth proportional to 119,274.63, 164,599.34 and 65,565.15 is: 90,480.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,274.63 : 164,599.34 = 65,565.15 : x
  2. Step 2: Convert to fraction form
    119,274.63/164,599.34 = 65,565.15/x
  3. Step 3: Cross multiply
    119,274.63x = 164,599.34 × 65,565.15
  4. Step 4: Simplify right side
    119,274.63x = 10,791,979,840.73
  5. Step 5: Solve for x
    x = 10,791,979,840.73/119,274.63
  6. Step 6: Final answer
    x = 90,480.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.