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Finding the Fourth Proportional to 99,069.91, 148,603.03 and 39,904.11

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Solution

The fourth proportional to 99,069.91, 148,603.03 and 39,904.11 is: 59,855.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,069.91 : 148,603.03 = 39,904.11 : x
  2. Step 2: Convert to fraction form
    99,069.91/148,603.03 = 39,904.11/x
  3. Step 3: Cross multiply
    99,069.91x = 148,603.03 × 39,904.11
  4. Step 4: Simplify right side
    99,069.91x = 5,929,871,555.69
  5. Step 5: Solve for x
    x = 5,929,871,555.69/99,069.91
  6. Step 6: Final answer
    x = 59,855.43

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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.