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Finding the Fourth Proportional to 172,587, 258,506.58 and 83,654.46

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Solution

The fourth proportional to 172,587, 258,506.58 and 83,654.46 is: 125,300.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,587 : 258,506.58 = 83,654.46 : x
  2. Step 2: Convert to fraction form
    172,587/258,506.58 = 83,654.46/x
  3. Step 3: Cross multiply
    172,587x = 258,506.58 × 83,654.46
  4. Step 4: Simplify right side
    172,587x = 21,625,228,356.35
  5. Step 5: Solve for x
    x = 21,625,228,356.35/172,587
  6. Step 6: Final answer
    x = 125,300.45

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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.