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Finding the Fourth Proportional to 315,136.80, 473,050.80 and 174,823.20

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Solution

The fourth proportional to 315,136.80, 473,050.80 and 174,823.20 is: 262,426.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,136.80 : 473,050.80 = 174,823.20 : x
  2. Step 2: Convert to fraction form
    315,136.80/473,050.80 = 174,823.20/x
  3. Step 3: Cross multiply
    315,136.80x = 473,050.80 × 174,823.20
  4. Step 4: Simplify right side
    315,136.80x = 82,700,254,618.56
  5. Step 5: Solve for x
    x = 82,700,254,618.56/315,136.80
  6. Step 6: Final answer
    x = 262,426.52

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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.