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Finding the Fourth Proportional to 248,168.88, 342,672.12 and 172,586.16

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Solution

The fourth proportional to 248,168.88, 342,672.12 and 172,586.16 is: 238,307.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,168.88 : 342,672.12 = 172,586.16 : x
  2. Step 2: Convert to fraction form
    248,168.88/342,672.12 = 172,586.16/x
  3. Step 3: Cross multiply
    248,168.88x = 342,672.12 × 172,586.16
  4. Step 4: Simplify right side
    248,168.88x = 59,140,465,329.86
  5. Step 5: Solve for x
    x = 59,140,465,329.86/248,168.88
  6. Step 6: Final answer
    x = 238,307.34

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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.