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Finding the Fourth Proportional to 554,508.72, 831,662.88 and 155,050.80

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Solution

The fourth proportional to 554,508.72, 831,662.88 and 155,050.80 is: 232,548.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,508.72 : 831,662.88 = 155,050.80 : x
  2. Step 2: Convert to fraction form
    554,508.72/831,662.88 = 155,050.80/x
  3. Step 3: Cross multiply
    554,508.72x = 831,662.88 × 155,050.80
  4. Step 4: Simplify right side
    554,508.72x = 128,949,994,874.30
  5. Step 5: Solve for x
    x = 128,949,994,874.30/554,508.72
  6. Step 6: Final answer
    x = 232,548.18

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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.