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Finding the Fourth Proportional to 72,317.40, 108,443.70 and 32,854.20

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Solution

The fourth proportional to 72,317.40, 108,443.70 and 32,854.20 is: 49,266.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,317.40 : 108,443.70 = 32,854.20 : x
  2. Step 2: Convert to fraction form
    72,317.40/108,443.70 = 32,854.20/x
  3. Step 3: Cross multiply
    72,317.40x = 108,443.70 × 32,854.20
  4. Step 4: Simplify right side
    72,317.40x = 3,562,831,008.54
  5. Step 5: Solve for x
    x = 3,562,831,008.54/72,317.40
  6. Step 6: Final answer
    x = 49,266.58

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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.