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Finding the Fourth Proportional to 164,785.38, 247,309.38 and 64,970.70

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Solution

The fourth proportional to 164,785.38, 247,309.38 and 64,970.70 is: 97,507.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,785.38 : 247,309.38 = 64,970.70 : x
  2. Step 2: Convert to fraction form
    164,785.38/247,309.38 = 64,970.70/x
  3. Step 3: Cross multiply
    164,785.38x = 247,309.38 × 64,970.70
  4. Step 4: Simplify right side
    164,785.38x = 16,067,863,535.17
  5. Step 5: Solve for x
    x = 16,067,863,535.17/164,785.38
  6. Step 6: Final answer
    x = 97,507.82

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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.