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Finding the Fourth Proportional to 117,315.84, 161,873.64 and 69,551.76

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Solution

The fourth proportional to 117,315.84, 161,873.64 and 69,551.76 is: 95,968.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,315.84 : 161,873.64 = 69,551.76 : x
  2. Step 2: Convert to fraction form
    117,315.84/161,873.64 = 69,551.76/x
  3. Step 3: Cross multiply
    117,315.84x = 161,873.64 × 69,551.76
  4. Step 4: Simplify right side
    117,315.84x = 11,258,596,559.61
  5. Step 5: Solve for x
    x = 11,258,596,559.61/117,315.84
  6. Step 6: Final answer
    x = 95,968.26

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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.