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Finding the Fourth Proportional to 188,627.68, 260,314.44 and 103,747.84

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Solution

The fourth proportional to 188,627.68, 260,314.44 and 103,747.84 is: 143,176.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,627.68 : 260,314.44 = 103,747.84 : x
  2. Step 2: Convert to fraction form
    188,627.68/260,314.44 = 103,747.84/x
  3. Step 3: Cross multiply
    188,627.68x = 260,314.44 × 103,747.84
  4. Step 4: Simplify right side
    188,627.68x = 27,007,060,870.81
  5. Step 5: Solve for x
    x = 27,007,060,870.81/188,627.68
  6. Step 6: Final answer
    x = 143,176.55

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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.