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Finding the Fourth Proportional to 103,626.80, 155,417.16 and 37,071.44

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Solution

The fourth proportional to 103,626.80, 155,417.16 and 37,071.44 is: 55,598.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,626.80 : 155,417.16 = 37,071.44 : x
  2. Step 2: Convert to fraction form
    103,626.80/155,417.16 = 37,071.44/x
  3. Step 3: Cross multiply
    103,626.80x = 155,417.16 × 37,071.44
  4. Step 4: Simplify right side
    103,626.80x = 5,761,537,921.91
  5. Step 5: Solve for x
    x = 5,761,537,921.91/103,626.80
  6. Step 6: Final answer
    x = 55,598.92

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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.