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Finding the Fourth Proportional to 216,931.04, 325,606.52 and 104,690.12

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Solution

The fourth proportional to 216,931.04, 325,606.52 and 104,690.12 is: 157,136.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,931.04 : 325,606.52 = 104,690.12 : x
  2. Step 2: Convert to fraction form
    216,931.04/325,606.52 = 104,690.12/x
  3. Step 3: Cross multiply
    216,931.04x = 325,606.52 × 104,690.12
  4. Step 4: Simplify right side
    216,931.04x = 34,087,785,651.58
  5. Step 5: Solve for x
    x = 34,087,785,651.58/216,931.04
  6. Step 6: Final answer
    x = 157,136.51

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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.