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Finding the Fourth Proportional to 74,782.44, 103,195.08 and 42,928.92

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Solution

The fourth proportional to 74,782.44, 103,195.08 and 42,928.92 is: 59,239.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,782.44 : 103,195.08 = 42,928.92 : x
  2. Step 2: Convert to fraction form
    74,782.44/103,195.08 = 42,928.92/x
  3. Step 3: Cross multiply
    74,782.44x = 103,195.08 × 42,928.92
  4. Step 4: Simplify right side
    74,782.44x = 4,430,053,333.71
  5. Step 5: Solve for x
    x = 4,430,053,333.71/74,782.44
  6. Step 6: Final answer
    x = 59,239.22

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1.5x scale

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.