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Finding the Fourth Proportional to 229,298.39, 342,403.53 and 187,261.92

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Solution

The fourth proportional to 229,298.39, 342,403.53 and 187,261.92 is: 279,631.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,298.39 : 342,403.53 = 187,261.92 : x
  2. Step 2: Convert to fraction form
    229,298.39/342,403.53 = 187,261.92/x
  3. Step 3: Cross multiply
    229,298.39x = 342,403.53 × 187,261.92
  4. Step 4: Simplify right side
    229,298.39x = 64,119,142,442.58
  5. Step 5: Solve for x
    x = 64,119,142,442.58/229,298.39
  6. Step 6: Final answer
    x = 279,631.90

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.