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Finding the Fourth Proportional to 166,988.91, 230,479.47 and 153,538.86

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Solution

The fourth proportional to 166,988.91, 230,479.47 and 153,538.86 is: 211,915.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,988.91 : 230,479.47 = 153,538.86 : x
  2. Step 2: Convert to fraction form
    166,988.91/230,479.47 = 153,538.86/x
  3. Step 3: Cross multiply
    166,988.91x = 230,479.47 × 153,538.86
  4. Step 4: Simplify right side
    166,988.91x = 35,387,555,077.20
  5. Step 5: Solve for x
    x = 35,387,555,077.20/166,988.91
  6. Step 6: Final answer
    x = 211,915.60

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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.