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Finding the Fourth Proportional to 75,132.59, 112,707.77 and 47,054.97

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Solution

The fourth proportional to 75,132.59, 112,707.77 and 47,054.97 is: 70,588.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,132.59 : 112,707.77 = 47,054.97 : x
  2. Step 2: Convert to fraction form
    75,132.59/112,707.77 = 47,054.97/x
  3. Step 3: Cross multiply
    75,132.59x = 112,707.77 × 47,054.97
  4. Step 4: Simplify right side
    75,132.59x = 5,303,460,500.84
  5. Step 5: Solve for x
    x = 5,303,460,500.84/75,132.59
  6. Step 6: Final answer
    x = 70,588.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.