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Finding the Fourth Proportional to 117,345.58, 176,025.79 and 45,332.83

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Solution

The fourth proportional to 117,345.58, 176,025.79 and 45,332.83 is: 68,002.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,345.58 : 176,025.79 = 45,332.83 : x
  2. Step 2: Convert to fraction form
    117,345.58/176,025.79 = 45,332.83/x
  3. Step 3: Cross multiply
    117,345.58x = 176,025.79 × 45,332.83
  4. Step 4: Simplify right side
    117,345.58x = 7,979,747,327.02
  5. Step 5: Solve for x
    x = 7,979,747,327.02/117,345.58
  6. Step 6: Final answer
    x = 68,002.12

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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.