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Finding the Fourth Proportional to 162,818.01, 224,915.28 and 122,839.65

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Solution

The fourth proportional to 162,818.01, 224,915.28 and 122,839.65 is: 169,689.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,818.01 : 224,915.28 = 122,839.65 : x
  2. Step 2: Convert to fraction form
    162,818.01/224,915.28 = 122,839.65/x
  3. Step 3: Cross multiply
    162,818.01x = 224,915.28 × 122,839.65
  4. Step 4: Simplify right side
    162,818.01x = 27,628,514,274.85
  5. Step 5: Solve for x
    x = 27,628,514,274.85/162,818.01
  6. Step 6: Final answer
    x = 169,689.55

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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.