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Finding the Fourth Proportional to 134,752.30, 202,128.45 and 82,264.30

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Solution

The fourth proportional to 134,752.30, 202,128.45 and 82,264.30 is: 123,396.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,752.30 : 202,128.45 = 82,264.30 : x
  2. Step 2: Convert to fraction form
    134,752.30/202,128.45 = 82,264.30/x
  3. Step 3: Cross multiply
    134,752.30x = 202,128.45 × 82,264.30
  4. Step 4: Simplify right side
    134,752.30x = 16,627,955,449.34
  5. Step 5: Solve for x
    x = 16,627,955,449.34/134,752.30
  6. Step 6: Final answer
    x = 123,396.45

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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.