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Finding the Fourth Proportional to 106,330.88, 159,527.50 and 31,453

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Solution

The fourth proportional to 106,330.88, 159,527.50 and 31,453 is: 47,188.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,330.88 : 159,527.50 = 31,453 : x
  2. Step 2: Convert to fraction form
    106,330.88/159,527.50 = 31,453/x
  3. Step 3: Cross multiply
    106,330.88x = 159,527.50 × 31,453
  4. Step 4: Simplify right side
    106,330.88x = 5,017,618,457.50
  5. Step 5: Solve for x
    x = 5,017,618,457.50/106,330.88
  6. Step 6: Final answer
    x = 47,188.72

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.