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Finding the Fourth Proportional to 104,009.40, 155,754.90 and 83,273.40

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Solution

The fourth proportional to 104,009.40, 155,754.90 and 83,273.40 is: 124,702.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,009.40 : 155,754.90 = 83,273.40 : x
  2. Step 2: Convert to fraction form
    104,009.40/155,754.90 = 83,273.40/x
  3. Step 3: Cross multiply
    104,009.40x = 155,754.90 × 83,273.40
  4. Step 4: Simplify right side
    104,009.40x = 12,970,240,089.66
  5. Step 5: Solve for x
    x = 12,970,240,089.66/104,009.40
  6. Step 6: Final answer
    x = 124,702.58

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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.