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Finding the Fourth Proportional to 103,315.70, 154,987.95 and 44,150.90

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Solution

The fourth proportional to 103,315.70, 154,987.95 and 44,150.90 is: 66,232.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,315.70 : 154,987.95 = 44,150.90 : x
  2. Step 2: Convert to fraction form
    103,315.70/154,987.95 = 44,150.90/x
  3. Step 3: Cross multiply
    103,315.70x = 154,987.95 × 44,150.90
  4. Step 4: Simplify right side
    103,315.70x = 6,842,857,481.66
  5. Step 5: Solve for x
    x = 6,842,857,481.66/103,315.70
  6. Step 6: Final answer
    x = 66,232.50

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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.