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Finding the Fourth Proportional to 75,410.66, 104,055.12 and 43,573.40

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Solution

The fourth proportional to 75,410.66, 104,055.12 and 43,573.40 is: 60,124.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,410.66 : 104,055.12 = 43,573.40 : x
  2. Step 2: Convert to fraction form
    75,410.66/104,055.12 = 43,573.40/x
  3. Step 3: Cross multiply
    75,410.66x = 104,055.12 × 43,573.40
  4. Step 4: Simplify right side
    75,410.66x = 4,534,035,365.81
  5. Step 5: Solve for x
    x = 4,534,035,365.81/75,410.66
  6. Step 6: Final answer
    x = 60,124.60

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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.