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Finding the Fourth Proportional to 80,857.67, 111,583.55 and 46,885.93

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Solution

The fourth proportional to 80,857.67, 111,583.55 and 46,885.93 is: 64,702.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,857.67 : 111,583.55 = 46,885.93 : x
  2. Step 2: Convert to fraction form
    80,857.67/111,583.55 = 46,885.93/x
  3. Step 3: Cross multiply
    80,857.67x = 111,583.55 × 46,885.93
  4. Step 4: Simplify right side
    80,857.67x = 5,231,698,352.71
  5. Step 5: Solve for x
    x = 5,231,698,352.71/80,857.67
  6. Step 6: Final answer
    x = 64,702.57

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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.