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Finding the Fourth Proportional to 224,543.65, 309,343.88 and 156,437.44

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Solution

The fourth proportional to 224,543.65, 309,343.88 and 156,437.44 is: 215,516.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,543.65 : 309,343.88 = 156,437.44 : x
  2. Step 2: Convert to fraction form
    224,543.65/309,343.88 = 156,437.44/x
  3. Step 3: Cross multiply
    224,543.65x = 309,343.88 × 156,437.44
  4. Step 4: Simplify right side
    224,543.65x = 48,392,964,666.87
  5. Step 5: Solve for x
    x = 48,392,964,666.87/224,543.65
  6. Step 6: Final answer
    x = 215,516.96

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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.