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Finding the Fourth Proportional to 70,990.65, 106,395.51 and 37,726.65

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Solution

The fourth proportional to 70,990.65, 106,395.51 and 37,726.65 is: 56,541.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,990.65 : 106,395.51 = 37,726.65 : x
  2. Step 2: Convert to fraction form
    70,990.65/106,395.51 = 37,726.65/x
  3. Step 3: Cross multiply
    70,990.65x = 106,395.51 × 37,726.65
  4. Step 4: Simplify right side
    70,990.65x = 4,013,946,167.34
  5. Step 5: Solve for x
    x = 4,013,946,167.34/70,990.65
  6. Step 6: Final answer
    x = 56,541.90

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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.