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Finding the Fourth Proportional to 74,185.92, 102,320.76 and 51,524.94

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Solution

The fourth proportional to 74,185.92, 102,320.76 and 51,524.94 is: 71,065.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,185.92 : 102,320.76 = 51,524.94 : x
  2. Step 2: Convert to fraction form
    74,185.92/102,320.76 = 51,524.94/x
  3. Step 3: Cross multiply
    74,185.92x = 102,320.76 × 51,524.94
  4. Step 4: Simplify right side
    74,185.92x = 5,272,071,019.75
  5. Step 5: Solve for x
    x = 5,272,071,019.75/74,185.92
  6. Step 6: Final answer
    x = 71,065.66

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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.