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Finding the Fourth Proportional to 216,611.47, 299,064.72 and 193,911.76

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Solution

The fourth proportional to 216,611.47, 299,064.72 and 193,911.76 is: 267,724.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,611.47 : 299,064.72 = 193,911.76 : x
  2. Step 2: Convert to fraction form
    216,611.47/299,064.72 = 193,911.76/x
  3. Step 3: Cross multiply
    216,611.47x = 299,064.72 × 193,911.76
  4. Step 4: Simplify right side
    216,611.47x = 57,992,166,209.11
  5. Step 5: Solve for x
    x = 57,992,166,209.11/216,611.47
  6. Step 6: Final answer
    x = 267,724.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.