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Finding the Fourth Proportional to 85,798.34, 118,401.63 and 48,072.86

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Solution

The fourth proportional to 85,798.34, 118,401.63 and 48,072.86 is: 66,340.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,798.34 : 118,401.63 = 48,072.86 : x
  2. Step 2: Convert to fraction form
    85,798.34/118,401.63 = 48,072.86/x
  3. Step 3: Cross multiply
    85,798.34x = 118,401.63 × 48,072.86
  4. Step 4: Simplify right side
    85,798.34x = 5,691,904,982.76
  5. Step 5: Solve for x
    x = 5,691,904,982.76/85,798.34
  6. Step 6: Final answer
    x = 66,340.50

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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.