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Finding the Fourth Proportional to 117,557, 176,162.66 and 69,476.12

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Solution

The fourth proportional to 117,557, 176,162.66 and 69,476.12 is: 104,112.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,557 : 176,162.66 = 69,476.12 : x
  2. Step 2: Convert to fraction form
    117,557/176,162.66 = 69,476.12/x
  3. Step 3: Cross multiply
    117,557x = 176,162.66 × 69,476.12
  4. Step 4: Simplify right side
    117,557x = 12,239,097,758.30
  5. Step 5: Solve for x
    x = 12,239,097,758.30/117,557
  6. Step 6: Final answer
    x = 104,112.03

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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.