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Finding the Fourth Proportional to 499,719.70, 749,688.90 and 162,775.90

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Solution

The fourth proportional to 499,719.70, 749,688.90 and 162,775.90 is: 244,199.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,719.70 : 749,688.90 = 162,775.90 : x
  2. Step 2: Convert to fraction form
    499,719.70/749,688.90 = 162,775.90/x
  3. Step 3: Cross multiply
    499,719.70x = 749,688.90 × 162,775.90
  4. Step 4: Simplify right side
    499,719.70x = 122,031,285,417.51
  5. Step 5: Solve for x
    x = 122,031,285,417.51/499,719.70
  6. Step 6: Final answer
    x = 244,199.47

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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.