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Finding the Fourth Proportional to 189,331.88, 261,278.88 and 104,448.92

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Solution

The fourth proportional to 189,331.88, 261,278.88 and 104,448.92 is: 144,140.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,331.88 : 261,278.88 = 104,448.92 : x
  2. Step 2: Convert to fraction form
    189,331.88/261,278.88 = 104,448.92/x
  3. Step 3: Cross multiply
    189,331.88x = 261,278.88 × 104,448.92
  4. Step 4: Simplify right side
    189,331.88x = 27,290,296,834.81
  5. Step 5: Solve for x
    x = 27,290,296,834.81/189,331.88
  6. Step 6: Final answer
    x = 144,140.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.