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Finding the Fourth Proportional to 117,558, 176,164.16 and 69,477.12

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Solution

The fourth proportional to 117,558, 176,164.16 and 69,477.12 is: 104,113.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,558 : 176,164.16 = 69,477.12 : x
  2. Step 2: Convert to fraction form
    117,558/176,164.16 = 69,477.12/x
  3. Step 3: Cross multiply
    117,558x = 176,164.16 × 69,477.12
  4. Step 4: Simplify right side
    117,558x = 12,239,378,136.63
  5. Step 5: Solve for x
    x = 12,239,378,136.63/117,558
  6. Step 6: Final answer
    x = 104,113.53

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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.