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Finding the Fourth Proportional to 216,871.51, 325,329.33 and 74,698.24

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Solution

The fourth proportional to 216,871.51, 325,329.33 and 74,698.24 is: 112,054.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,871.51 : 325,329.33 = 74,698.24 : x
  2. Step 2: Convert to fraction form
    216,871.51/325,329.33 = 74,698.24/x
  3. Step 3: Cross multiply
    216,871.51x = 325,329.33 × 74,698.24
  4. Step 4: Simplify right side
    216,871.51x = 24,301,528,371.38
  5. Step 5: Solve for x
    x = 24,301,528,371.38/216,871.51
  6. Step 6: Final answer
    x = 112,054.96

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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.