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Finding the Fourth Proportional to 75,603.51, 113,191.95 and 39,984.11

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Solution

The fourth proportional to 75,603.51, 113,191.95 and 39,984.11 is: 59,863.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,603.51 : 113,191.95 = 39,984.11 : x
  2. Step 2: Convert to fraction form
    75,603.51/113,191.95 = 39,984.11/x
  3. Step 3: Cross multiply
    75,603.51x = 113,191.95 × 39,984.11
  4. Step 4: Simplify right side
    75,603.51x = 4,525,879,379.91
  5. Step 5: Solve for x
    x = 4,525,879,379.91/75,603.51
  6. Step 6: Final answer
    x = 59,863.35

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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.