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Finding the Fourth Proportional to 303,740.42, 455,604.45 and 79,095.87

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Solution

The fourth proportional to 303,740.42, 455,604.45 and 79,095.87 is: 118,642.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,740.42 : 455,604.45 = 79,095.87 : x
  2. Step 2: Convert to fraction form
    303,740.42/455,604.45 = 79,095.87/x
  3. Step 3: Cross multiply
    303,740.42x = 455,604.45 × 79,095.87
  4. Step 4: Simplify right side
    303,740.42x = 36,036,430,052.01
  5. Step 5: Solve for x
    x = 36,036,430,052.01/303,740.42
  6. Step 6: Final answer
    x = 118,642.20

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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.