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Finding the Fourth Proportional to 316,673.48, 474,891.26 and 103,391.56

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Solution

The fourth proportional to 316,673.48, 474,891.26 and 103,391.56 is: 155,048.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,673.48 : 474,891.26 = 103,391.56 : x
  2. Step 2: Convert to fraction form
    316,673.48/474,891.26 = 103,391.56/x
  3. Step 3: Cross multiply
    316,673.48x = 474,891.26 × 103,391.56
  4. Step 4: Simplify right side
    316,673.48x = 49,099,748,201.77
  5. Step 5: Solve for x
    x = 49,099,748,201.77/316,673.48
  6. Step 6: Final answer
    x = 155,048.50

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1.5x scale

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.