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Finding the Fourth Proportional to 117,264.36, 161,824.20 and 63,547.98

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Solution

The fourth proportional to 117,264.36, 161,824.20 and 63,547.98 is: 87,695.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,264.36 : 161,824.20 = 63,547.98 : x
  2. Step 2: Convert to fraction form
    117,264.36/161,824.20 = 63,547.98/x
  3. Step 3: Cross multiply
    117,264.36x = 161,824.20 × 63,547.98
  4. Step 4: Simplify right side
    117,264.36x = 10,283,601,025.12
  5. Step 5: Solve for x
    x = 10,283,601,025.12/117,264.36
  6. Step 6: Final answer
    x = 87,695.88

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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.