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Finding the Fourth Proportional to 119,155.25, 178,762.95 and 55,963.71

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Solution

The fourth proportional to 119,155.25, 178,762.95 and 55,963.71 is: 83,959.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,155.25 : 178,762.95 = 55,963.71 : x
  2. Step 2: Convert to fraction form
    119,155.25/178,762.95 = 55,963.71/x
  3. Step 3: Cross multiply
    119,155.25x = 178,762.95 × 55,963.71
  4. Step 4: Simplify right side
    119,155.25x = 10,004,237,892.54
  5. Step 5: Solve for x
    x = 10,004,237,892.54/119,155.25
  6. Step 6: Final answer
    x = 83,959.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.