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Finding the Fourth Proportional to 202,947.32, 304,345.92 and 69,790.88

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Solution

The fourth proportional to 202,947.32, 304,345.92 and 69,790.88 is: 104,660.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,947.32 : 304,345.92 = 69,790.88 : x
  2. Step 2: Convert to fraction form
    202,947.32/304,345.92 = 69,790.88/x
  3. Step 3: Cross multiply
    202,947.32x = 304,345.92 × 69,790.88
  4. Step 4: Simplify right side
    202,947.32x = 21,240,569,581.21
  5. Step 5: Solve for x
    x = 21,240,569,581.21/202,947.32
  6. Step 6: Final answer
    x = 104,660.51

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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.