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Finding the Fourth Proportional to 74,258.76, 111,393.42 and 29,885.76

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Solution

The fourth proportional to 74,258.76, 111,393.42 and 29,885.76 is: 44,830.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,258.76 : 111,393.42 = 29,885.76 : x
  2. Step 2: Convert to fraction form
    74,258.76/111,393.42 = 29,885.76/x
  3. Step 3: Cross multiply
    74,258.76x = 111,393.42 × 29,885.76
  4. Step 4: Simplify right side
    74,258.76x = 3,329,077,015.70
  5. Step 5: Solve for x
    x = 3,329,077,015.70/74,258.76
  6. Step 6: Final answer
    x = 44,830.76

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1.5x scale

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.