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Finding the Fourth Proportional to 75,090.60, 103,625.04 and 46,796.40

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Solution

The fourth proportional to 75,090.60, 103,625.04 and 46,796.40 is: 64,579.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,090.60 : 103,625.04 = 46,796.40 : x
  2. Step 2: Convert to fraction form
    75,090.60/103,625.04 = 46,796.40/x
  3. Step 3: Cross multiply
    75,090.60x = 103,625.04 × 46,796.40
  4. Step 4: Simplify right side
    75,090.60x = 4,849,278,821.86
  5. Step 5: Solve for x
    x = 4,849,278,821.86/75,090.60
  6. Step 6: Final answer
    x = 64,579.04

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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.