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Finding the Fourth Proportional to 524,596.20, 787,088.70 and 169,621.80

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Solution

The fourth proportional to 524,596.20, 787,088.70 and 169,621.80 is: 254,495.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,596.20 : 787,088.70 = 169,621.80 : x
  2. Step 2: Convert to fraction form
    524,596.20/787,088.70 = 169,621.80/x
  3. Step 3: Cross multiply
    524,596.20x = 787,088.70 × 169,621.80
  4. Step 4: Simplify right side
    524,596.20x = 133,507,402,053.66
  5. Step 5: Solve for x
    x = 133,507,402,053.66/524,596.20
  6. Step 6: Final answer
    x = 254,495.56

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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.