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Finding the Fourth Proportional to 295,715.70, 443,622.15 and 127,316.70

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Solution

The fourth proportional to 295,715.70, 443,622.15 and 127,316.70 is: 190,995.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,715.70 : 443,622.15 = 127,316.70 : x
  2. Step 2: Convert to fraction form
    295,715.70/443,622.15 = 127,316.70/x
  3. Step 3: Cross multiply
    295,715.70x = 443,622.15 × 127,316.70
  4. Step 4: Simplify right side
    295,715.70x = 56,480,508,184.91
  5. Step 5: Solve for x
    x = 56,480,508,184.91/295,715.70
  6. Step 6: Final answer
    x = 190,995.97

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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.