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Finding the Fourth Proportional to 174,307.72, 261,461.58 and 121,819.72

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Solution

The fourth proportional to 174,307.72, 261,461.58 and 121,819.72 is: 182,729.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,307.72 : 261,461.58 = 121,819.72 : x
  2. Step 2: Convert to fraction form
    174,307.72/261,461.58 = 121,819.72/x
  3. Step 3: Cross multiply
    174,307.72x = 261,461.58 × 121,819.72
  4. Step 4: Simplify right side
    174,307.72x = 31,851,175,355.88
  5. Step 5: Solve for x
    x = 31,851,175,355.88/174,307.72
  6. Step 6: Final answer
    x = 182,729.58

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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.