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Finding the Fourth Proportional to 316,153.56, 474,227.76 and 129,033.84

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Solution

The fourth proportional to 316,153.56, 474,227.76 and 129,033.84 is: 193,549.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,153.56 : 474,227.76 = 129,033.84 : x
  2. Step 2: Convert to fraction form
    316,153.56/474,227.76 = 129,033.84/x
  3. Step 3: Cross multiply
    316,153.56x = 474,227.76 × 129,033.84
  4. Step 4: Simplify right side
    316,153.56x = 61,191,428,907.40
  5. Step 5: Solve for x
    x = 61,191,428,907.40/316,153.56
  6. Step 6: Final answer
    x = 193,549.71

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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.