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Finding the Fourth Proportional to 67,470.51, 101,048.31 and 53,335.65

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Solution

The fourth proportional to 67,470.51, 101,048.31 and 53,335.65 is: 79,879.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,470.51 : 101,048.31 = 53,335.65 : x
  2. Step 2: Convert to fraction form
    67,470.51/101,048.31 = 53,335.65/x
  3. Step 3: Cross multiply
    67,470.51x = 101,048.31 × 53,335.65
  4. Step 4: Simplify right side
    67,470.51x = 5,389,477,295.25
  5. Step 5: Solve for x
    x = 5,389,477,295.25/67,470.51
  6. Step 6: Final answer
    x = 79,879.01

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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.