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Finding the Fourth Proportional to 216,645.83, 299,046.40 and 148,887.10

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Solution

The fourth proportional to 216,645.83, 299,046.40 and 148,887.10 is: 205,515.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,645.83 : 299,046.40 = 148,887.10 : x
  2. Step 2: Convert to fraction form
    216,645.83/299,046.40 = 148,887.10/x
  3. Step 3: Cross multiply
    216,645.83x = 299,046.40 × 148,887.10
  4. Step 4: Simplify right side
    216,645.83x = 44,524,151,261.44
  5. Step 5: Solve for x
    x = 44,524,151,261.44/216,645.83
  6. Step 6: Final answer
    x = 205,515.85

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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.