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Finding the Fourth Proportional to 316.59, 474.67 and 152.02

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Solution

The fourth proportional to 316.59, 474.67 and 152.02 is: 227.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    316.59 : 474.67 = 152.02 : x
  2. Step 2: Convert to fraction form
    316.59/474.67 = 152.02/x
  3. Step 3: Cross multiply
    316.59x = 474.67 × 152.02
  4. Step 4: Simplify right side
    316.59x = 72,159.33
  5. Step 5: Solve for x
    x = 72,159.33/316.59
  6. Step 6: Final answer
    x = 227.93

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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.