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Finding the Fourth Proportional to 171,658.58, 236,841.32 and 99,056.42

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Solution

The fourth proportional to 171,658.58, 236,841.32 and 99,056.42 is: 136,670.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,658.58 : 236,841.32 = 99,056.42 : x
  2. Step 2: Convert to fraction form
    171,658.58/236,841.32 = 99,056.42/x
  3. Step 3: Cross multiply
    171,658.58x = 236,841.32 × 99,056.42
  4. Step 4: Simplify right side
    171,658.58x = 23,460,651,587.79
  5. Step 5: Solve for x
    x = 23,460,651,587.79/171,658.58
  6. Step 6: Final answer
    x = 136,670.43

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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.