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Finding the Fourth Proportional to 114,327.90, 171,491.85 and 112,140.90

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Solution

The fourth proportional to 114,327.90, 171,491.85 and 112,140.90 is: 168,211.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,327.90 : 171,491.85 = 112,140.90 : x
  2. Step 2: Convert to fraction form
    114,327.90/171,491.85 = 112,140.90/x
  3. Step 3: Cross multiply
    114,327.90x = 171,491.85 × 112,140.90
  4. Step 4: Simplify right side
    114,327.90x = 19,231,250,401.67
  5. Step 5: Solve for x
    x = 19,231,250,401.67/114,327.90
  6. Step 6: Final answer
    x = 168,211.35

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1.5x scale

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.