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Finding the Fourth Proportional to 99,796.32, 149,765.76 and 73,569.60

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Solution

The fourth proportional to 99,796.32, 149,765.76 and 73,569.60 is: 110,406.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,796.32 : 149,765.76 = 73,569.60 : x
  2. Step 2: Convert to fraction form
    99,796.32/149,765.76 = 73,569.60/x
  3. Step 3: Cross multiply
    99,796.32x = 149,765.76 × 73,569.60
  4. Step 4: Simplify right side
    99,796.32x = 11,018,207,056.90
  5. Step 5: Solve for x
    x = 11,018,207,056.90/99,796.32
  6. Step 6: Final answer
    x = 110,406.95

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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.