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Finding the Fourth Proportional to 554,492.20, 831,730.62 and 133,764.52

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Solution

The fourth proportional to 554,492.20, 831,730.62 and 133,764.52 is: 200,644.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,492.20 : 831,730.62 = 133,764.52 : x
  2. Step 2: Convert to fraction form
    554,492.20/831,730.62 = 133,764.52/x
  3. Step 3: Cross multiply
    554,492.20x = 831,730.62 × 133,764.52
  4. Step 4: Simplify right side
    554,492.20x = 111,256,047,153.60
  5. Step 5: Solve for x
    x = 111,256,047,153.60/554,492.20
  6. Step 6: Final answer
    x = 200,644.93

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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.