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Finding the Fourth Proportional to 388,920.26, 583,380.26 and 93,432.26

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Solution

The fourth proportional to 388,920.26, 583,380.26 and 93,432.26 is: 140,148.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,920.26 : 583,380.26 = 93,432.26 : x
  2. Step 2: Convert to fraction form
    388,920.26/583,380.26 = 93,432.26/x
  3. Step 3: Cross multiply
    388,920.26x = 583,380.26 × 93,432.26
  4. Step 4: Simplify right side
    388,920.26x = 54,506,536,131.19
  5. Step 5: Solve for x
    x = 54,506,536,131.19/388,920.26
  6. Step 6: Final answer
    x = 140,148.36

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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.