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Finding the Fourth Proportional to 61,108.98, 84,203.96 and 49,124.22

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Solution

The fourth proportional to 61,108.98, 84,203.96 and 49,124.22 is: 67,689.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,108.98 : 84,203.96 = 49,124.22 : x
  2. Step 2: Convert to fraction form
    61,108.98/84,203.96 = 49,124.22/x
  3. Step 3: Cross multiply
    61,108.98x = 84,203.96 × 49,124.22
  4. Step 4: Simplify right side
    61,108.98x = 4,136,453,855.91
  5. Step 5: Solve for x
    x = 4,136,453,855.91/61,108.98
  6. Step 6: Final answer
    x = 67,689.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.