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Finding the Fourth Proportional to 312,176.33, 430,803.33 and 168,936.36

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Solution

The fourth proportional to 312,176.33, 430,803.33 and 168,936.36 is: 233,132.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,176.33 : 430,803.33 = 168,936.36 : x
  2. Step 2: Convert to fraction form
    312,176.33/430,803.33 = 168,936.36/x
  3. Step 3: Cross multiply
    312,176.33x = 430,803.33 × 168,936.36
  4. Step 4: Simplify right side
    312,176.33x = 72,778,346,446.08
  5. Step 5: Solve for x
    x = 72,778,346,446.08/312,176.33
  6. Step 6: Final answer
    x = 233,132.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.