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Finding the Fourth Proportional to 315,592.02, 435,518.58 and 172,352.04

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Solution

The fourth proportional to 315,592.02, 435,518.58 and 172,352.04 is: 237,846.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,592.02 : 435,518.58 = 172,352.04 : x
  2. Step 2: Convert to fraction form
    315,592.02/435,518.58 = 172,352.04/x
  3. Step 3: Cross multiply
    315,592.02x = 435,518.58 × 172,352.04
  4. Step 4: Simplify right side
    315,592.02x = 75,062,515,720.90
  5. Step 5: Solve for x
    x = 75,062,515,720.90/315,592.02
  6. Step 6: Final answer
    x = 237,846.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.