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Finding the Fourth Proportional to 352,985.52, 487,123.24 and 191,840.98

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Solution

The fourth proportional to 352,985.52, 487,123.24 and 191,840.98 is: 264,742.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,985.52 : 487,123.24 = 191,840.98 : x
  2. Step 2: Convert to fraction form
    352,985.52/487,123.24 = 191,840.98/x
  3. Step 3: Cross multiply
    352,985.52x = 487,123.24 × 191,840.98
  4. Step 4: Simplify right side
    352,985.52x = 93,450,199,742.38
  5. Step 5: Solve for x
    x = 93,450,199,742.38/352,985.52
  6. Step 6: Final answer
    x = 264,742.30

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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.