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Finding the Fourth Proportional to 117,703.12, 176,588.52 and 42,822.04

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Solution

The fourth proportional to 117,703.12, 176,588.52 and 42,822.04 is: 64,245.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,703.12 : 176,588.52 = 42,822.04 : x
  2. Step 2: Convert to fraction form
    117,703.12/176,588.52 = 42,822.04/x
  3. Step 3: Cross multiply
    117,703.12x = 176,588.52 × 42,822.04
  4. Step 4: Simplify right side
    117,703.12x = 7,561,880,666.98
  5. Step 5: Solve for x
    x = 7,561,880,666.98/117,703.12
  6. Step 6: Final answer
    x = 64,245.37

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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.