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Finding the Fourth Proportional to 99,705.53, 149,525.95 and 33,127.78

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Solution

The fourth proportional to 99,705.53, 149,525.95 and 33,127.78 is: 49,680.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,705.53 : 149,525.95 = 33,127.78 : x
  2. Step 2: Convert to fraction form
    99,705.53/149,525.95 = 33,127.78/x
  3. Step 3: Cross multiply
    99,705.53x = 149,525.95 × 33,127.78
  4. Step 4: Simplify right side
    99,705.53x = 4,953,462,775.89
  5. Step 5: Solve for x
    x = 4,953,462,775.89/99,705.53
  6. Step 6: Final answer
    x = 49,680.92

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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.