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Finding the Fourth Proportional to 261,858.91, 361,503.39 and 176,267.90

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Solution

The fourth proportional to 261,858.91, 361,503.39 and 176,267.90 is: 243,342.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,858.91 : 361,503.39 = 176,267.90 : x
  2. Step 2: Convert to fraction form
    261,858.91/361,503.39 = 176,267.90/x
  3. Step 3: Cross multiply
    261,858.91x = 361,503.39 × 176,267.90
  4. Step 4: Simplify right side
    261,858.91x = 63,721,440,709.32
  5. Step 5: Solve for x
    x = 63,721,440,709.32/261,858.91
  6. Step 6: Final answer
    x = 243,342.65

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.