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Finding the Fourth Proportional to 75,130.92, 103,668.48 and 44,928.72

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Solution

The fourth proportional to 75,130.92, 103,668.48 and 44,928.72 is: 61,994.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,130.92 : 103,668.48 = 44,928.72 : x
  2. Step 2: Convert to fraction form
    75,130.92/103,668.48 = 44,928.72/x
  3. Step 3: Cross multiply
    75,130.92x = 103,668.48 × 44,928.72
  4. Step 4: Simplify right side
    75,130.92x = 4,657,692,110.75
  5. Step 5: Solve for x
    x = 4,657,692,110.75/75,130.92
  6. Step 6: Final answer
    x = 61,994.34

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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.