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Finding the Fourth Proportional to 117,312.77, 161,892.45 and 63,598.63

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Solution

The fourth proportional to 117,312.77, 161,892.45 and 63,598.63 is: 87,766.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,312.77 : 161,892.45 = 63,598.63 : x
  2. Step 2: Convert to fraction form
    117,312.77/161,892.45 = 63,598.63/x
  3. Step 3: Cross multiply
    117,312.77x = 161,892.45 × 63,598.63
  4. Step 4: Simplify right side
    117,312.77x = 10,296,137,217.88
  5. Step 5: Solve for x
    x = 10,296,137,217.88/117,312.77
  6. Step 6: Final answer
    x = 87,766.55

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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.