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Finding the Fourth Proportional to 189,817.50, 261,925.41 and 104,923.02

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Solution

The fourth proportional to 189,817.50, 261,925.41 and 104,923.02 is: 144,781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,817.50 : 261,925.41 = 104,923.02 : x
  2. Step 2: Convert to fraction form
    189,817.50/261,925.41 = 104,923.02/x
  3. Step 3: Cross multiply
    189,817.50x = 261,925.41 × 104,923.02
  4. Step 4: Simplify right side
    189,817.50x = 27,482,005,031.94
  5. Step 5: Solve for x
    x = 27,482,005,031.94/189,817.50
  6. Step 6: Final answer
    x = 144,781.20

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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.