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Finding the Fourth Proportional to 92,874.40, 139,311.60 and 46,218.40

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Solution

The fourth proportional to 92,874.40, 139,311.60 and 46,218.40 is: 69,327.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,874.40 : 139,311.60 = 46,218.40 : x
  2. Step 2: Convert to fraction form
    92,874.40/139,311.60 = 46,218.40/x
  3. Step 3: Cross multiply
    92,874.40x = 139,311.60 × 46,218.40
  4. Step 4: Simplify right side
    92,874.40x = 6,438,759,253.44
  5. Step 5: Solve for x
    x = 6,438,759,253.44/92,874.40
  6. Step 6: Final answer
    x = 69,327.60

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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.