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Finding the Fourth Proportional to 176,931.80, 264,792.90 and 106,861.40

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Solution

The fourth proportional to 176,931.80, 264,792.90 and 106,861.40 is: 159,926.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,931.80 : 264,792.90 = 106,861.40 : x
  2. Step 2: Convert to fraction form
    176,931.80/264,792.90 = 106,861.40/x
  3. Step 3: Cross multiply
    176,931.80x = 264,792.90 × 106,861.40
  4. Step 4: Simplify right side
    176,931.80x = 28,296,140,004.06
  5. Step 5: Solve for x
    x = 28,296,140,004.06/176,931.80
  6. Step 6: Final answer
    x = 159,926.82

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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.