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Finding the Fourth Proportional to 84,688.61, 127,042.22 and 37,283.36

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Solution

The fourth proportional to 84,688.61, 127,042.22 and 37,283.36 is: 55,929.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,688.61 : 127,042.22 = 37,283.36 : x
  2. Step 2: Convert to fraction form
    84,688.61/127,042.22 = 37,283.36/x
  3. Step 3: Cross multiply
    84,688.61x = 127,042.22 × 37,283.36
  4. Step 4: Simplify right side
    84,688.61x = 4,736,560,281.46
  5. Step 5: Solve for x
    x = 4,736,560,281.46/84,688.61
  6. Step 6: Final answer
    x = 55,929.13

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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.