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Finding the Fourth Proportional to 424,465.64, 636,550.74 and 158,080.80

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Solution

The fourth proportional to 424,465.64, 636,550.74 and 158,080.80 is: 237,066.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,465.64 : 636,550.74 = 158,080.80 : x
  2. Step 2: Convert to fraction form
    424,465.64/636,550.74 = 158,080.80/x
  3. Step 3: Cross multiply
    424,465.64x = 636,550.74 × 158,080.80
  4. Step 4: Simplify right side
    424,465.64x = 100,626,450,219.79
  5. Step 5: Solve for x
    x = 100,626,450,219.79/424,465.64
  6. Step 6: Final answer
    x = 237,066.19

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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.