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Finding the Fourth Proportional to 283,300.80, 424,909.08 and 105,785.52

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Solution

The fourth proportional to 283,300.80, 424,909.08 and 105,785.52 is: 158,662.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,300.80 : 424,909.08 = 105,785.52 : x
  2. Step 2: Convert to fraction form
    283,300.80/424,909.08 = 105,785.52/x
  3. Step 3: Cross multiply
    283,300.80x = 424,909.08 × 105,785.52
  4. Step 4: Simplify right side
    283,300.80x = 44,949,227,980.52
  5. Step 5: Solve for x
    x = 44,949,227,980.52/283,300.80
  6. Step 6: Final answer
    x = 158,662.55

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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.