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Finding the Fourth Proportional to 106,603.98, 159,876.78 and 40,038.96

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Solution

The fourth proportional to 106,603.98, 159,876.78 and 40,038.96 is: 60,047.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,603.98 : 159,876.78 = 40,038.96 : x
  2. Step 2: Convert to fraction form
    106,603.98/159,876.78 = 40,038.96/x
  3. Step 3: Cross multiply
    106,603.98x = 159,876.78 × 40,038.96
  4. Step 4: Simplify right side
    106,603.98x = 6,401,299,999.35
  5. Step 5: Solve for x
    x = 6,401,299,999.35/106,603.98
  6. Step 6: Final answer
    x = 60,047.48

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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.