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Finding the Fourth Proportional to 180,915.69, 271,031.00 and 120,762.79

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Solution

The fourth proportional to 180,915.69, 271,031.00 and 120,762.79 is: 180,915.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,915.69 : 271,031.00 = 120,762.79 : x
  2. Step 2: Convert to fraction form
    180,915.69/271,031.00 = 120,762.79/x
  3. Step 3: Cross multiply
    180,915.69x = 271,031.00 × 120,762.79
  4. Step 4: Simplify right side
    180,915.69x = 32,730,458,073.96
  5. Step 5: Solve for x
    x = 32,730,458,073.96/180,915.69
  6. Step 6: Final answer
    x = 180,915.54

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1.5x scale

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.