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Finding the Fourth Proportional to 356,880.72, 535,151.64 and 207,166.92

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Solution

The fourth proportional to 356,880.72, 535,151.64 and 207,166.92 is: 310,652.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,880.72 : 535,151.64 = 207,166.92 : x
  2. Step 2: Convert to fraction form
    356,880.72/535,151.64 = 207,166.92/x
  3. Step 3: Cross multiply
    356,880.72x = 535,151.64 × 207,166.92
  4. Step 4: Simplify right side
    356,880.72x = 110,865,716,991.75
  5. Step 5: Solve for x
    x = 110,865,716,991.75/356,880.72
  6. Step 6: Final answer
    x = 310,652.02

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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.