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Finding the Fourth Proportional to 386,064.03, 578,898.60 and 161,363.15

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Solution

The fourth proportional to 386,064.03, 578,898.60 and 161,363.15 is: 241,962.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,064.03 : 578,898.60 = 161,363.15 : x
  2. Step 2: Convert to fraction form
    386,064.03/578,898.60 = 161,363.15/x
  3. Step 3: Cross multiply
    386,064.03x = 578,898.60 × 161,363.15
  4. Step 4: Simplify right side
    386,064.03x = 93,412,901,626.59
  5. Step 5: Solve for x
    x = 93,412,901,626.59/386,064.03
  6. Step 6: Final answer
    x = 241,962.20

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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.