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Finding the Fourth Proportional to 499,423.35, 749,141.93 and 162,465.77

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Solution

The fourth proportional to 499,423.35, 749,141.93 and 162,465.77 is: 243,700.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,423.35 : 749,141.93 = 162,465.77 : x
  2. Step 2: Convert to fraction form
    499,423.35/749,141.93 = 162,465.77/x
  3. Step 3: Cross multiply
    499,423.35x = 749,141.93 × 162,465.77
  4. Step 4: Simplify right side
    499,423.35x = 121,709,918,561.83
  5. Step 5: Solve for x
    x = 121,709,918,561.83/499,423.35
  6. Step 6: Final answer
    x = 243,700.90

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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.