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Finding the Fourth Proportional to 216,685.83, 325,025.87 and 74,533.57

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Solution

The fourth proportional to 216,685.83, 325,025.87 and 74,533.57 is: 111,799.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,685.83 : 325,025.87 = 74,533.57 : x
  2. Step 2: Convert to fraction form
    216,685.83/325,025.87 = 74,533.57/x
  3. Step 3: Cross multiply
    216,685.83x = 325,025.87 × 74,533.57
  4. Step 4: Simplify right side
    216,685.83x = 24,225,337,248.22
  5. Step 5: Solve for x
    x = 24,225,337,248.22/216,685.83
  6. Step 6: Final answer
    x = 111,799.36

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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.