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Finding the Fourth Proportional to 117,252, 161,807.76 and 66,951

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Solution

The fourth proportional to 117,252, 161,807.76 and 66,951 is: 92,392.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,252 : 161,807.76 = 66,951 : x
  2. Step 2: Convert to fraction form
    117,252/161,807.76 = 66,951/x
  3. Step 3: Cross multiply
    117,252x = 161,807.76 × 66,951
  4. Step 4: Simplify right side
    117,252x = 10,833,191,339.76
  5. Step 5: Solve for x
    x = 10,833,191,339.76/117,252
  6. Step 6: Final answer
    x = 92,392.38

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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.