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Finding the Fourth Proportional to 85,295.46, 117,669.65 and 49,464.69

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Solution

The fourth proportional to 85,295.46, 117,669.65 and 49,464.69 is: 68,239.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,295.46 : 117,669.65 = 49,464.69 : x
  2. Step 2: Convert to fraction form
    85,295.46/117,669.65 = 49,464.69/x
  3. Step 3: Cross multiply
    85,295.46x = 117,669.65 × 49,464.69
  4. Step 4: Simplify right side
    85,295.46x = 5,820,492,512.34
  5. Step 5: Solve for x
    x = 5,820,492,512.34/85,295.46
  6. Step 6: Final answer
    x = 68,239.18

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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.