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Finding the Fourth Proportional to 346,738.20, 520,107.30 and 160,114.20

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Solution

The fourth proportional to 346,738.20, 520,107.30 and 160,114.20 is: 240,171.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,738.20 : 520,107.30 = 160,114.20 : x
  2. Step 2: Convert to fraction form
    346,738.20/520,107.30 = 160,114.20/x
  3. Step 3: Cross multiply
    346,738.20x = 520,107.30 × 160,114.20
  4. Step 4: Simplify right side
    346,738.20x = 83,276,564,253.66
  5. Step 5: Solve for x
    x = 83,276,564,253.66/346,738.20
  6. Step 6: Final answer
    x = 240,171.30

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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.