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Finding the Fourth Proportional to 161,906.45, 242,712.65 and 56,668.01

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Solution

The fourth proportional to 161,906.45, 242,712.65 and 56,668.01 is: 84,950.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,906.45 : 242,712.65 = 56,668.01 : x
  2. Step 2: Convert to fraction form
    161,906.45/242,712.65 = 56,668.01/x
  3. Step 3: Cross multiply
    161,906.45x = 242,712.65 × 56,668.01
  4. Step 4: Simplify right side
    161,906.45x = 13,754,041,805.43
  5. Step 5: Solve for x
    x = 13,754,041,805.43/161,906.45
  6. Step 6: Final answer
    x = 84,950.55

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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.