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Finding the Fourth Proportional to 593,155.72, 889,885.31 and 172,431.60

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Solution

The fourth proportional to 593,155.72, 889,885.31 and 172,431.60 is: 258,691.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,155.72 : 889,885.31 = 172,431.60 : x
  2. Step 2: Convert to fraction form
    593,155.72/889,885.31 = 172,431.60/x
  3. Step 3: Cross multiply
    593,155.72x = 889,885.31 × 172,431.60
  4. Step 4: Simplify right side
    593,155.72x = 153,444,345,235.69
  5. Step 5: Solve for x
    x = 153,444,345,235.69/593,155.72
  6. Step 6: Final answer
    x = 258,691.50

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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.