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Finding the Fourth Proportional to 170,678.43, 256,050.68 and 65,489.22

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Solution

The fourth proportional to 170,678.43, 256,050.68 and 65,489.22 is: 98,246.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,678.43 : 256,050.68 = 65,489.22 : x
  2. Step 2: Convert to fraction form
    170,678.43/256,050.68 = 65,489.22/x
  3. Step 3: Cross multiply
    170,678.43x = 256,050.68 × 65,489.22
  4. Step 4: Simplify right side
    170,678.43x = 16,768,558,986.22
  5. Step 5: Solve for x
    x = 16,768,558,986.22/170,678.43
  6. Step 6: Final answer
    x = 98,246.50

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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.