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Finding the Fourth Proportional to 316,650.20, 474,312.90 and 148,314.20

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Solution

The fourth proportional to 316,650.20, 474,312.90 and 148,314.20 is: 222,161.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,650.20 : 474,312.90 = 148,314.20 : x
  2. Step 2: Convert to fraction form
    316,650.20/474,312.90 = 148,314.20/x
  3. Step 3: Cross multiply
    316,650.20x = 474,312.90 × 148,314.20
  4. Step 4: Simplify right side
    316,650.20x = 70,347,338,313.18
  5. Step 5: Solve for x
    x = 70,347,338,313.18/316,650.20
  6. Step 6: Final answer
    x = 222,161.04

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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.