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Finding the Fourth Proportional to 109,775.32, 151,489.86 and 59,474.32

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Solution

The fourth proportional to 109,775.32, 151,489.86 and 59,474.32 is: 82,074.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,775.32 : 151,489.86 = 59,474.32 : x
  2. Step 2: Convert to fraction form
    109,775.32/151,489.86 = 59,474.32/x
  3. Step 3: Cross multiply
    109,775.32x = 151,489.86 × 59,474.32
  4. Step 4: Simplify right side
    109,775.32x = 9,009,756,410.40
  5. Step 5: Solve for x
    x = 9,009,756,410.40/109,775.32
  6. Step 6: Final answer
    x = 82,074.52

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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.