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Finding the Fourth Proportional to 181,643.45, 272,506.68 and 55,301.67

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Solution

The fourth proportional to 181,643.45, 272,506.68 and 55,301.67 is: 82,965.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,643.45 : 272,506.68 = 55,301.67 : x
  2. Step 2: Convert to fraction form
    181,643.45/272,506.68 = 55,301.67/x
  3. Step 3: Cross multiply
    181,643.45x = 272,506.68 × 55,301.67
  4. Step 4: Simplify right side
    181,643.45x = 15,070,074,490.16
  5. Step 5: Solve for x
    x = 15,070,074,490.16/181,643.45
  6. Step 6: Final answer
    x = 82,965.14

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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.