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Finding the Fourth Proportional to 171,478.61, 236,755.95 and 107,045.94

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Solution

The fourth proportional to 171,478.61, 236,755.95 and 107,045.94 is: 147,795.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,478.61 : 236,755.95 = 107,045.94 : x
  2. Step 2: Convert to fraction form
    171,478.61/236,755.95 = 107,045.94/x
  3. Step 3: Cross multiply
    171,478.61x = 236,755.95 × 107,045.94
  4. Step 4: Simplify right side
    171,478.61x = 25,343,763,218.34
  5. Step 5: Solve for x
    x = 25,343,763,218.34/171,478.61
  6. Step 6: Final answer
    x = 147,795.48

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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.