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Finding the Fourth Proportional to 173,113.20, 259,669.80 and 79,801.20

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Solution

The fourth proportional to 173,113.20, 259,669.80 and 79,801.20 is: 119,701.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,113.20 : 259,669.80 = 79,801.20 : x
  2. Step 2: Convert to fraction form
    173,113.20/259,669.80 = 79,801.20/x
  3. Step 3: Cross multiply
    173,113.20x = 259,669.80 × 79,801.20
  4. Step 4: Simplify right side
    173,113.20x = 20,721,961,643.76
  5. Step 5: Solve for x
    x = 20,721,961,643.76/173,113.20
  6. Step 6: Final answer
    x = 119,701.80

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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.