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Finding the Fourth Proportional to 101,806.14, 140,486.14 and 61,496.10

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Solution

The fourth proportional to 101,806.14, 140,486.14 and 61,496.10 is: 84,860.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,806.14 : 140,486.14 = 61,496.10 : x
  2. Step 2: Convert to fraction form
    101,806.14/140,486.14 = 61,496.10/x
  3. Step 3: Cross multiply
    101,806.14x = 140,486.14 × 61,496.10
  4. Step 4: Simplify right side
    101,806.14x = 8,639,349,714.05
  5. Step 5: Solve for x
    x = 8,639,349,714.05/101,806.14
  6. Step 6: Final answer
    x = 84,860.79

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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.