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Finding the Fourth Proportional to 372,057.72, 558,088.76 and 91,573.08

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Solution

The fourth proportional to 372,057.72, 558,088.76 and 91,573.08 is: 137,360.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,057.72 : 558,088.76 = 91,573.08 : x
  2. Step 2: Convert to fraction form
    372,057.72/558,088.76 = 91,573.08/x
  3. Step 3: Cross multiply
    372,057.72x = 558,088.76 × 91,573.08
  4. Step 4: Simplify right side
    372,057.72x = 51,105,906,666.58
  5. Step 5: Solve for x
    x = 51,105,906,666.58/372,057.72
  6. Step 6: Final answer
    x = 137,360.16

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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.