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Finding the Fourth Proportional to 72,406.60, 108,707.10 and 46,227.40

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Solution

The fourth proportional to 72,406.60, 108,707.10 and 46,227.40 is: 69,403.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,406.60 : 108,707.10 = 46,227.40 : x
  2. Step 2: Convert to fraction form
    72,406.60/108,707.10 = 46,227.40/x
  3. Step 3: Cross multiply
    72,406.60x = 108,707.10 × 46,227.40
  4. Step 4: Simplify right side
    72,406.60x = 5,025,246,594.54
  5. Step 5: Solve for x
    x = 5,025,246,594.54/72,406.60
  6. Step 6: Final answer
    x = 69,403.16

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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.