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Finding the Fourth Proportional to 388,827.78, 583,241.64 and 93,339.78

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Solution

The fourth proportional to 388,827.78, 583,241.64 and 93,339.78 is: 140,009.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,827.78 : 583,241.64 = 93,339.78 : x
  2. Step 2: Convert to fraction form
    388,827.78/583,241.64 = 93,339.78/x
  3. Step 3: Cross multiply
    388,827.78x = 583,241.64 × 93,339.78
  4. Step 4: Simplify right side
    388,827.78x = 54,439,646,364.44
  5. Step 5: Solve for x
    x = 54,439,646,364.44/388,827.78
  6. Step 6: Final answer
    x = 140,009.66

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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.