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Finding the Fourth Proportional to 189,061.65, 283,325.18 and 104,858.91

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Solution

The fourth proportional to 189,061.65, 283,325.18 and 104,858.91 is: 157,140.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,061.65 : 283,325.18 = 104,858.91 : x
  2. Step 2: Convert to fraction form
    189,061.65/283,325.18 = 104,858.91/x
  3. Step 3: Cross multiply
    189,061.65x = 283,325.18 × 104,858.91
  4. Step 4: Simplify right side
    189,061.65x = 29,709,169,026.06
  5. Step 5: Solve for x
    x = 29,709,169,026.06/189,061.65
  6. Step 6: Final answer
    x = 157,140.11

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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.