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Finding the Fourth Proportional to 85,963.98, 118,635.66 and 49,666.98

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Solution

The fourth proportional to 85,963.98, 118,635.66 and 49,666.98 is: 68,543.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,963.98 : 118,635.66 = 49,666.98 : x
  2. Step 2: Convert to fraction form
    85,963.98/118,635.66 = 49,666.98/x
  3. Step 3: Cross multiply
    85,963.98x = 118,635.66 × 49,666.98
  4. Step 4: Simplify right side
    85,963.98x = 5,892,274,952.51
  5. Step 5: Solve for x
    x = 5,892,274,952.51/85,963.98
  6. Step 6: Final answer
    x = 68,543.53

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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.