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Finding the Fourth Proportional to 554,500.58, 831,709.80 and 155,132.51

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Solution

The fourth proportional to 554,500.58, 831,709.80 and 155,132.51 is: 232,687.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,500.58 : 831,709.80 = 155,132.51 : x
  2. Step 2: Convert to fraction form
    554,500.58/831,709.80 = 155,132.51/x
  3. Step 3: Cross multiply
    554,500.58x = 831,709.80 × 155,132.51
  4. Step 4: Simplify right side
    554,500.58x = 129,025,224,707.05
  5. Step 5: Solve for x
    x = 129,025,224,707.05/554,500.58
  6. Step 6: Final answer
    x = 232,687.27

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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.