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Finding the Fourth Proportional to 189,590.98, 261,651.83 and 104,724.45

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Solution

The fourth proportional to 189,590.98, 261,651.83 and 104,724.45 is: 144,528.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,590.98 : 261,651.83 = 104,724.45 : x
  2. Step 2: Convert to fraction form
    189,590.98/261,651.83 = 104,724.45/x
  3. Step 3: Cross multiply
    189,590.98x = 261,651.83 × 104,724.45
  4. Step 4: Simplify right side
    189,590.98x = 27,401,343,988.24
  5. Step 5: Solve for x
    x = 27,401,343,988.24/189,590.98
  6. Step 6: Final answer
    x = 144,528.73

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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.