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Finding the Fourth Proportional to 113,289.64, 169,924.64 and 53,303.87

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Solution

The fourth proportional to 113,289.64, 169,924.64 and 53,303.87 is: 79,951.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,289.64 : 169,924.64 = 53,303.87 : x
  2. Step 2: Convert to fraction form
    113,289.64/169,924.64 = 53,303.87/x
  3. Step 3: Cross multiply
    113,289.64x = 169,924.64 × 53,303.87
  4. Step 4: Simplify right side
    113,289.64x = 9,057,641,078.65
  5. Step 5: Solve for x
    x = 9,057,641,078.65/113,289.64
  6. Step 6: Final answer
    x = 79,951.19

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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.