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Finding the Fourth Proportional to 258,599.72, 356,784.55 and 156,592.58

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Solution

The fourth proportional to 258,599.72, 356,784.55 and 156,592.58 is: 216,047.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,599.72 : 356,784.55 = 156,592.58 : x
  2. Step 2: Convert to fraction form
    258,599.72/356,784.55 = 156,592.58/x
  3. Step 3: Cross multiply
    258,599.72x = 356,784.55 × 156,592.58
  4. Step 4: Simplify right side
    258,599.72x = 55,869,811,013.23
  5. Step 5: Solve for x
    x = 55,869,811,013.23/258,599.72
  6. Step 6: Final answer
    x = 216,047.45

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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.