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Finding the Fourth Proportional to 191,679.88, 287,554.01 and 63,603.86

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Solution

The fourth proportional to 191,679.88, 287,554.01 and 63,603.86 is: 95,417.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,679.88 : 287,554.01 = 63,603.86 : x
  2. Step 2: Convert to fraction form
    191,679.88/287,554.01 = 63,603.86/x
  3. Step 3: Cross multiply
    191,679.88x = 287,554.01 × 63,603.86
  4. Step 4: Simplify right side
    191,679.88x = 18,289,544,647.70
  5. Step 5: Solve for x
    x = 18,289,544,647.70/191,679.88
  6. Step 6: Final answer
    x = 95,417.13

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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.