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Finding the Fourth Proportional to 520,838.76, 781,333.00 and 161,037.67

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Solution

The fourth proportional to 520,838.76, 781,333.00 and 161,037.67 is: 241,579.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,838.76 : 781,333.00 = 161,037.67 : x
  2. Step 2: Convert to fraction form
    520,838.76/781,333.00 = 161,037.67/x
  3. Step 3: Cross multiply
    520,838.76x = 781,333.00 × 161,037.67
  4. Step 4: Simplify right side
    520,838.76x = 125,824,045,829.02
  5. Step 5: Solve for x
    x = 125,824,045,829.02/520,838.76
  6. Step 6: Final answer
    x = 241,579.65

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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.