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Finding the Fourth Proportional to 173,340.80, 260,011.20 and 68,124.80

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Solution

The fourth proportional to 173,340.80, 260,011.20 and 68,124.80 is: 102,187.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,340.80 : 260,011.20 = 68,124.80 : x
  2. Step 2: Convert to fraction form
    173,340.80/260,011.20 = 68,124.80/x
  3. Step 3: Cross multiply
    173,340.80x = 260,011.20 × 68,124.80
  4. Step 4: Simplify right side
    173,340.80x = 17,713,210,997.76
  5. Step 5: Solve for x
    x = 17,713,210,997.76/173,340.80
  6. Step 6: Final answer
    x = 102,187.20

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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.