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Finding the Fourth Proportional to 94,903.52, 142,361.76 and 28,342.40

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Solution

The fourth proportional to 94,903.52, 142,361.76 and 28,342.40 is: 42,515.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,903.52 : 142,361.76 = 28,342.40 : x
  2. Step 2: Convert to fraction form
    94,903.52/142,361.76 = 28,342.40/x
  3. Step 3: Cross multiply
    94,903.52x = 142,361.76 × 28,342.40
  4. Step 4: Simplify right side
    94,903.52x = 4,034,873,946.62
  5. Step 5: Solve for x
    x = 4,034,873,946.62/94,903.52
  6. Step 6: Final answer
    x = 42,515.54

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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.