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Finding the Fourth Proportional to 245,590.70, 368,472.45 and 120,848.30

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Solution

The fourth proportional to 245,590.70, 368,472.45 and 120,848.30 is: 181,314.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,590.70 : 368,472.45 = 120,848.30 : x
  2. Step 2: Convert to fraction form
    245,590.70/368,472.45 = 120,848.30/x
  3. Step 3: Cross multiply
    245,590.70x = 368,472.45 × 120,848.30
  4. Step 4: Simplify right side
    245,590.70x = 44,529,269,179.34
  5. Step 5: Solve for x
    x = 44,529,269,179.34/245,590.70
  6. Step 6: Final answer
    x = 181,314.97

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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.