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Finding the Fourth Proportional to 282,310.61, 423,482.37 and 79,889.77

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Solution

The fourth proportional to 282,310.61, 423,482.37 and 79,889.77 is: 119,839.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,310.61 : 423,482.37 = 79,889.77 : x
  2. Step 2: Convert to fraction form
    282,310.61/423,482.37 = 79,889.77/x
  3. Step 3: Cross multiply
    282,310.61x = 423,482.37 × 79,889.77
  4. Step 4: Simplify right side
    282,310.61x = 33,831,909,138.35
  5. Step 5: Solve for x
    x = 33,831,909,138.35/282,310.61
  6. Step 6: Final answer
    x = 119,839.31

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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.