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Finding the Fourth Proportional to 75,086.60, 103,619.52 and 46,792.40

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Solution

The fourth proportional to 75,086.60, 103,619.52 and 46,792.40 is: 64,573.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,086.60 : 103,619.52 = 46,792.40 : x
  2. Step 2: Convert to fraction form
    75,086.60/103,619.52 = 46,792.40/x
  3. Step 3: Cross multiply
    75,086.60x = 103,619.52 × 46,792.40
  4. Step 4: Simplify right side
    75,086.60x = 4,848,606,027.65
  5. Step 5: Solve for x
    x = 4,848,606,027.65/75,086.60
  6. Step 6: Final answer
    x = 64,573.52

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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.