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Finding the Fourth Proportional to 172,683.68, 257,759.03 and 160,019.64

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Solution

The fourth proportional to 172,683.68, 257,759.03 and 160,019.64 is: 238,855.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,683.68 : 257,759.03 = 160,019.64 : x
  2. Step 2: Convert to fraction form
    172,683.68/257,759.03 = 160,019.64/x
  3. Step 3: Cross multiply
    172,683.68x = 257,759.03 × 160,019.64
  4. Step 4: Simplify right side
    172,683.68x = 41,246,506,387.25
  5. Step 5: Solve for x
    x = 41,246,506,387.25/172,683.68
  6. Step 6: Final answer
    x = 238,855.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.