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Finding the Fourth Proportional to 554,035.23, 831,078.32 and 169,756.56

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Solution

The fourth proportional to 554,035.23, 831,078.32 and 169,756.56 is: 254,642.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,035.23 : 831,078.32 = 169,756.56 : x
  2. Step 2: Convert to fraction form
    554,035.23/831,078.32 = 169,756.56/x
  3. Step 3: Cross multiply
    554,035.23x = 831,078.32 × 169,756.56
  4. Step 4: Simplify right side
    554,035.23x = 141,080,995,845.00
  5. Step 5: Solve for x
    x = 141,080,995,845.00/554,035.23
  6. Step 6: Final answer
    x = 254,642.64

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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.