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Finding the Fourth Proportional to 315,914.80, 474,001.80 and 116,330.80

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Solution

The fourth proportional to 315,914.80, 474,001.80 and 116,330.80 is: 174,543.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,914.80 : 474,001.80 = 116,330.80 : x
  2. Step 2: Convert to fraction form
    315,914.80/474,001.80 = 116,330.80/x
  3. Step 3: Cross multiply
    315,914.80x = 474,001.80 × 116,330.80
  4. Step 4: Simplify right side
    315,914.80x = 55,141,008,595.44
  5. Step 5: Solve for x
    x = 55,141,008,595.44/315,914.80
  6. Step 6: Final answer
    x = 174,543.92

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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.