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Finding the Fourth Proportional to 291,812.20, 437,718.30 and 125,600.20

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Solution

The fourth proportional to 291,812.20, 437,718.30 and 125,600.20 is: 188,400.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,812.20 : 437,718.30 = 125,600.20 : x
  2. Step 2: Convert to fraction form
    291,812.20/437,718.30 = 125,600.20/x
  3. Step 3: Cross multiply
    291,812.20x = 437,718.30 × 125,600.20
  4. Step 4: Simplify right side
    291,812.20x = 54,977,506,023.66
  5. Step 5: Solve for x
    x = 54,977,506,023.66/291,812.20
  6. Step 6: Final answer
    x = 188,400.30

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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.