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Finding the Fourth Proportional to 85,737.96, 118,312.67 and 47,494.94

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Solution

The fourth proportional to 85,737.96, 118,312.67 and 47,494.94 is: 65,539.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,737.96 : 118,312.67 = 47,494.94 : x
  2. Step 2: Convert to fraction form
    85,737.96/118,312.67 = 47,494.94/x
  3. Step 3: Cross multiply
    85,737.96x = 118,312.67 × 47,494.94
  4. Step 4: Simplify right side
    85,737.96x = 5,619,252,690.06
  5. Step 5: Solve for x
    x = 5,619,252,690.06/85,737.96
  6. Step 6: Final answer
    x = 65,539.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.