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Finding the Fourth Proportional to 223,334.10, 334,904.15 and 81,132.12

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Solution

The fourth proportional to 223,334.10, 334,904.15 and 81,132.12 is: 121,662.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,334.10 : 334,904.15 = 81,132.12 : x
  2. Step 2: Convert to fraction form
    223,334.10/334,904.15 = 81,132.12/x
  3. Step 3: Cross multiply
    223,334.10x = 334,904.15 × 81,132.12
  4. Step 4: Simplify right side
    223,334.10x = 27,171,483,889.13
  5. Step 5: Solve for x
    x = 27,171,483,889.13/223,334.10
  6. Step 6: Final answer
    x = 121,662.94

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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.