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Finding the Fourth Proportional to 74,063.84, 102,101.78 and 52,806.20

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Solution

The fourth proportional to 74,063.84, 102,101.78 and 52,806.20 is: 72,796.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,063.84 : 102,101.78 = 52,806.20 : x
  2. Step 2: Convert to fraction form
    74,063.84/102,101.78 = 52,806.20/x
  3. Step 3: Cross multiply
    74,063.84x = 102,101.78 × 52,806.20
  4. Step 4: Simplify right side
    74,063.84x = 5,391,607,015.04
  5. Step 5: Solve for x
    x = 5,391,607,015.04/74,063.84
  6. Step 6: Final answer
    x = 72,796.75

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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.