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Finding the Fourth Proportional to 162,343.44, 224,038.32 and 90,731.28

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Solution

The fourth proportional to 162,343.44, 224,038.32 and 90,731.28 is: 125,211.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,343.44 : 224,038.32 = 90,731.28 : x
  2. Step 2: Convert to fraction form
    162,343.44/224,038.32 = 90,731.28/x
  3. Step 3: Cross multiply
    162,343.44x = 224,038.32 × 90,731.28
  4. Step 4: Simplify right side
    162,343.44x = 20,327,283,542.65
  5. Step 5: Solve for x
    x = 20,327,283,542.65/162,343.44
  6. Step 6: Final answer
    x = 125,211.61

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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.