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Finding the Fourth Proportional to 216,673.31, 325,086.95 and 96,719.40

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Solution

The fourth proportional to 216,673.31, 325,086.95 and 96,719.40 is: 145,113.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,673.31 : 325,086.95 = 96,719.40 : x
  2. Step 2: Convert to fraction form
    216,673.31/325,086.95 = 96,719.40/x
  3. Step 3: Cross multiply
    216,673.31x = 325,086.95 × 96,719.40
  4. Step 4: Simplify right side
    216,673.31x = 31,442,214,993.63
  5. Step 5: Solve for x
    x = 31,442,214,993.63/216,673.31
  6. Step 6: Final answer
    x = 145,113.46

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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.