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Finding the Fourth Proportional to 518,751.71, 778,200.37 and 181,715.20

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Solution

The fourth proportional to 518,751.71, 778,200.37 and 181,715.20 is: 272,598.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,751.71 : 778,200.37 = 181,715.20 : x
  2. Step 2: Convert to fraction form
    518,751.71/778,200.37 = 181,715.20/x
  3. Step 3: Cross multiply
    518,751.71x = 778,200.37 × 181,715.20
  4. Step 4: Simplify right side
    518,751.71x = 141,410,831,529.33
  5. Step 5: Solve for x
    x = 141,410,831,529.33/518,751.71
  6. Step 6: Final answer
    x = 272,598.29

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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.