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Finding the Fourth Proportional to 101,482.92, 140,102.72 and 61,206.84

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Solution

The fourth proportional to 101,482.92, 140,102.72 and 61,206.84 is: 84,499.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,482.92 : 140,102.72 = 61,206.84 : x
  2. Step 2: Convert to fraction form
    101,482.92/140,102.72 = 61,206.84/x
  3. Step 3: Cross multiply
    101,482.92x = 140,102.72 × 61,206.84
  4. Step 4: Simplify right side
    101,482.92x = 8,575,244,766.60
  5. Step 5: Solve for x
    x = 8,575,244,766.60/101,482.92
  6. Step 6: Final answer
    x = 84,499.39

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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.