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Finding the Fourth Proportional to 85,007.78, 117,308.38 and 46,244.32

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Solution

The fourth proportional to 85,007.78, 117,308.38 and 46,244.32 is: 63,815.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,007.78 : 117,308.38 = 46,244.32 : x
  2. Step 2: Convert to fraction form
    85,007.78/117,308.38 = 46,244.32/x
  3. Step 3: Cross multiply
    85,007.78x = 117,308.38 × 46,244.32
  4. Step 4: Simplify right side
    85,007.78x = 5,424,846,263.40
  5. Step 5: Solve for x
    x = 5,424,846,263.40/85,007.78
  6. Step 6: Final answer
    x = 63,815.88

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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.