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Finding the Fourth Proportional to 217,205.58, 325,862.63 and 153,288.48

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Solution

The fourth proportional to 217,205.58, 325,862.63 and 153,288.48 is: 229,971.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,205.58 : 325,862.63 = 153,288.48 : x
  2. Step 2: Convert to fraction form
    217,205.58/325,862.63 = 153,288.48/x
  3. Step 3: Cross multiply
    217,205.58x = 325,862.63 × 153,288.48
  4. Step 4: Simplify right side
    217,205.58x = 49,950,986,816.41
  5. Step 5: Solve for x
    x = 49,950,986,816.41/217,205.58
  6. Step 6: Final answer
    x = 229,971.01

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1.5x scale

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.