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Finding the Fourth Proportional to 269,303.72, 371,622.16 and 148,438.32

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Solution

The fourth proportional to 269,303.72, 371,622.16 and 148,438.32 is: 204,835.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,303.72 : 371,622.16 = 148,438.32 : x
  2. Step 2: Convert to fraction form
    269,303.72/371,622.16 = 148,438.32/x
  3. Step 3: Cross multiply
    269,303.72x = 371,622.16 × 148,438.32
  4. Step 4: Simplify right side
    269,303.72x = 55,162,969,105.17
  5. Step 5: Solve for x
    x = 55,162,969,105.17/269,303.72
  6. Step 6: Final answer
    x = 204,835.53

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1.5x scale

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.