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Finding the Fourth Proportional to 173,507.90, 239,491.68 and 100,927.76

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Solution

The fourth proportional to 173,507.90, 239,491.68 and 100,927.76 is: 139,309.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,507.90 : 239,491.68 = 100,927.76 : x
  2. Step 2: Convert to fraction form
    173,507.90/239,491.68 = 100,927.76/x
  3. Step 3: Cross multiply
    173,507.90x = 239,491.68 × 100,927.76
  4. Step 4: Simplify right side
    173,507.90x = 24,171,358,801.04
  5. Step 5: Solve for x
    x = 24,171,358,801.04/173,507.90
  6. Step 6: Final answer
    x = 139,309.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.