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Finding the Fourth Proportional to 372,088.92, 558,133.74 and 135,433.56

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Solution

The fourth proportional to 372,088.92, 558,133.74 and 135,433.56 is: 203,150.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,088.92 : 558,133.74 = 135,433.56 : x
  2. Step 2: Convert to fraction form
    372,088.92/558,133.74 = 135,433.56/x
  3. Step 3: Cross multiply
    372,088.92x = 558,133.74 × 135,433.56
  4. Step 4: Simplify right side
    372,088.92x = 75,590,039,364.31
  5. Step 5: Solve for x
    x = 75,590,039,364.31/372,088.92
  6. Step 6: Final answer
    x = 203,150.47

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1.5x scale

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.