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Finding the Fourth Proportional to 171,458.19, 236,615.66 and 102,618.54

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Solution

The fourth proportional to 171,458.19, 236,615.66 and 102,618.54 is: 141,615.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,458.19 : 236,615.66 = 102,618.54 : x
  2. Step 2: Convert to fraction form
    171,458.19/236,615.66 = 102,618.54/x
  3. Step 3: Cross multiply
    171,458.19x = 236,615.66 × 102,618.54
  4. Step 4: Simplify right side
    171,458.19x = 24,281,153,570.34
  5. Step 5: Solve for x
    x = 24,281,153,570.34/171,458.19
  6. Step 6: Final answer
    x = 141,615.59

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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.