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Finding the Fourth Proportional to 103,628.65, 155,442.98 and 37,070.95

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Solution

The fourth proportional to 103,628.65, 155,442.98 and 37,070.95 is: 55,606.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,628.65 : 155,442.98 = 37,070.95 : x
  2. Step 2: Convert to fraction form
    103,628.65/155,442.98 = 37,070.95/x
  3. Step 3: Cross multiply
    103,628.65x = 155,442.98 × 37,070.95
  4. Step 4: Simplify right side
    103,628.65x = 5,762,418,939.43
  5. Step 5: Solve for x
    x = 5,762,418,939.43/103,628.65
  6. Step 6: Final answer
    x = 55,606.43

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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.