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Finding the Fourth Proportional to 315,752.80, 473,629.20 and 94,136.80

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Solution

The fourth proportional to 315,752.80, 473,629.20 and 94,136.80 is: 141,205.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,752.80 : 473,629.20 = 94,136.80 : x
  2. Step 2: Convert to fraction form
    315,752.80/473,629.20 = 94,136.80/x
  3. Step 3: Cross multiply
    315,752.80x = 473,629.20 × 94,136.80
  4. Step 4: Simplify right side
    315,752.80x = 44,585,937,274.56
  5. Step 5: Solve for x
    x = 44,585,937,274.56/315,752.80
  6. Step 6: Final answer
    x = 141,205.20

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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.