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Finding the Fourth Proportional to 176,326.87, 243,405.56 and 119,043.77

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Solution

The fourth proportional to 176,326.87, 243,405.56 and 119,043.77 is: 164,330.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,326.87 : 243,405.56 = 119,043.77 : x
  2. Step 2: Convert to fraction form
    176,326.87/243,405.56 = 119,043.77/x
  3. Step 3: Cross multiply
    176,326.87x = 243,405.56 × 119,043.77
  4. Step 4: Simplify right side
    176,326.87x = 28,975,915,966.06
  5. Step 5: Solve for x
    x = 28,975,915,966.06/176,326.87
  6. Step 6: Final answer
    x = 164,330.69

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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.