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Finding the Fourth Proportional to 189,050.76, 260,888.45 and 104,166

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Solution

The fourth proportional to 189,050.76, 260,888.45 and 104,166 is: 143,748.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,050.76 : 260,888.45 = 104,166 : x
  2. Step 2: Convert to fraction form
    189,050.76/260,888.45 = 104,166/x
  3. Step 3: Cross multiply
    189,050.76x = 260,888.45 × 104,166
  4. Step 4: Simplify right side
    189,050.76x = 27,175,705,761.87
  5. Step 5: Solve for x
    x = 27,175,705,761.87/189,050.76
  6. Step 6: Final answer
    x = 143,748.20

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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.