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Finding the Fourth Proportional to 176,287.76, 243,252.61 and 103,693.94

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Solution

The fourth proportional to 176,287.76, 243,252.61 and 103,693.94 is: 143,083.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,287.76 : 243,252.61 = 103,693.94 : x
  2. Step 2: Convert to fraction form
    176,287.76/243,252.61 = 103,693.94/x
  3. Step 3: Cross multiply
    176,287.76x = 243,252.61 × 103,693.94
  4. Step 4: Simplify right side
    176,287.76x = 25,223,821,546.18
  5. Step 5: Solve for x
    x = 25,223,821,546.18/176,287.76
  6. Step 6: Final answer
    x = 143,083.23

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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.