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Finding the Fourth Proportional to 554,009.62, 831,014.45 and 133,285.50

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Solution

The fourth proportional to 554,009.62, 831,014.45 and 133,285.50 is: 199,928.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,009.62 : 831,014.45 = 133,285.50 : x
  2. Step 2: Convert to fraction form
    554,009.62/831,014.45 = 133,285.50/x
  3. Step 3: Cross multiply
    554,009.62x = 831,014.45 × 133,285.50
  4. Step 4: Simplify right side
    554,009.62x = 110,762,176,475.48
  5. Step 5: Solve for x
    x = 110,762,176,475.48/554,009.62
  6. Step 6: Final answer
    x = 199,928.25

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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.