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Finding the Fourth Proportional to 554,374.27, 831,554.12 and 133,646.77

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Solution

The fourth proportional to 554,374.27, 831,554.12 and 133,646.77 is: 200,468.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,374.27 : 831,554.12 = 133,646.77 : x
  2. Step 2: Convert to fraction form
    554,374.27/831,554.12 = 133,646.77/x
  3. Step 3: Cross multiply
    554,374.27x = 831,554.12 × 133,646.77
  4. Step 4: Simplify right side
    554,374.27x = 111,134,521,549.96
  5. Step 5: Solve for x
    x = 111,134,521,549.96/554,374.27
  6. Step 6: Final answer
    x = 200,468.40

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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.