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Finding the Fourth Proportional to 317,128.43, 475,762.61 and 92,506.46

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Solution

The fourth proportional to 317,128.43, 475,762.61 and 92,506.46 is: 138,780.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,128.43 : 475,762.61 = 92,506.46 : x
  2. Step 2: Convert to fraction form
    317,128.43/475,762.61 = 92,506.46/x
  3. Step 3: Cross multiply
    317,128.43x = 475,762.61 × 92,506.46
  4. Step 4: Simplify right side
    317,128.43x = 44,011,112,703.91
  5. Step 5: Solve for x
    x = 44,011,112,703.91/317,128.43
  6. Step 6: Final answer
    x = 138,780.09

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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.