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Finding the Fourth Proportional to 137,756.90, 206,687.30 and 93,798.20

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Solution

The fourth proportional to 137,756.90, 206,687.30 and 93,798.20 is: 140,732.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,756.90 : 206,687.30 = 93,798.20 : x
  2. Step 2: Convert to fraction form
    137,756.90/206,687.30 = 93,798.20/x
  3. Step 3: Cross multiply
    137,756.90x = 206,687.30 × 93,798.20
  4. Step 4: Simplify right side
    137,756.90x = 19,386,896,750.59
  5. Step 5: Solve for x
    x = 19,386,896,750.59/137,756.90
  6. Step 6: Final answer
    x = 140,732.67

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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.