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Finding the Fourth Proportional to 385,325.84, 577,930.44 and 104,864.96

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Solution

The fourth proportional to 385,325.84, 577,930.44 and 104,864.96 is: 157,281.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,325.84 : 577,930.44 = 104,864.96 : x
  2. Step 2: Convert to fraction form
    385,325.84/577,930.44 = 104,864.96/x
  3. Step 3: Cross multiply
    385,325.84x = 577,930.44 × 104,864.96
  4. Step 4: Simplify right side
    385,325.84x = 60,604,652,473.38
  5. Step 5: Solve for x
    x = 60,604,652,473.38/385,325.84
  6. Step 6: Final answer
    x = 157,281.57

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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.