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Finding the Fourth Proportional to 207,105.15, 310,661.58 and 64,947.27

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Solution

The fourth proportional to 207,105.15, 310,661.58 and 64,947.27 is: 97,422.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,105.15 : 310,661.58 = 64,947.27 : x
  2. Step 2: Convert to fraction form
    207,105.15/310,661.58 = 64,947.27/x
  3. Step 3: Cross multiply
    207,105.15x = 310,661.58 × 64,947.27
  4. Step 4: Simplify right side
    207,105.15x = 20,176,620,810.62
  5. Step 5: Solve for x
    x = 20,176,620,810.62/207,105.15
  6. Step 6: Final answer
    x = 97,422.11

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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.