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Finding the Fourth Proportional to 161,690.98, 242,536.47 and 61,881.77

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Solution

The fourth proportional to 161,690.98, 242,536.47 and 61,881.77 is: 92,822.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,690.98 : 242,536.47 = 61,881.77 : x
  2. Step 2: Convert to fraction form
    161,690.98/242,536.47 = 61,881.77/x
  3. Step 3: Cross multiply
    161,690.98x = 242,536.47 × 61,881.77
  4. Step 4: Simplify right side
    161,690.98x = 15,008,584,840.47
  5. Step 5: Solve for x
    x = 15,008,584,840.47/161,690.98
  6. Step 6: Final answer
    x = 92,822.65

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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.