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Finding the Fourth Proportional to 85,954.88, 118,622.40 and 48,228.32

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Solution

The fourth proportional to 85,954.88, 118,622.40 and 48,228.32 is: 66,557.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,954.88 : 118,622.40 = 48,228.32 : x
  2. Step 2: Convert to fraction form
    85,954.88/118,622.40 = 48,228.32/x
  3. Step 3: Cross multiply
    85,954.88x = 118,622.40 × 48,228.32
  4. Step 4: Simplify right side
    85,954.88x = 5,720,959,066.37
  5. Step 5: Solve for x
    x = 5,720,959,066.37/85,954.88
  6. Step 6: Final answer
    x = 66,557.70

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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.