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Finding the Fourth Proportional to 316,334.94, 474,452.19 and 147,972.12

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Solution

The fourth proportional to 316,334.94, 474,452.19 and 147,972.12 is: 221,934.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,334.94 : 474,452.19 = 147,972.12 : x
  2. Step 2: Convert to fraction form
    316,334.94/474,452.19 = 147,972.12/x
  3. Step 3: Cross multiply
    316,334.94x = 474,452.19 × 147,972.12
  4. Step 4: Simplify right side
    316,334.94x = 70,205,696,392.94
  5. Step 5: Solve for x
    x = 70,205,696,392.94/316,334.94
  6. Step 6: Final answer
    x = 221,934.69

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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.