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Finding the Fourth Proportional to 114,863.60, 172,294.32 and 39,983.60

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Solution

The fourth proportional to 114,863.60, 172,294.32 and 39,983.60 is: 59,975.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,863.60 : 172,294.32 = 39,983.60 : x
  2. Step 2: Convert to fraction form
    114,863.60/172,294.32 = 39,983.60/x
  3. Step 3: Cross multiply
    114,863.60x = 172,294.32 × 39,983.60
  4. Step 4: Simplify right side
    114,863.60x = 6,888,947,173.15
  5. Step 5: Solve for x
    x = 6,888,947,173.15/114,863.60
  6. Step 6: Final answer
    x = 59,975.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.