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Finding the Fourth Proportional to 353,009.48, 487,158.01 and 191,864.48

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Solution

The fourth proportional to 353,009.48, 487,158.01 and 191,864.48 is: 264,775.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,009.48 : 487,158.01 = 191,864.48 : x
  2. Step 2: Convert to fraction form
    353,009.48/487,158.01 = 191,864.48/x
  3. Step 3: Cross multiply
    353,009.48x = 487,158.01 × 191,864.48
  4. Step 4: Simplify right side
    353,009.48x = 93,468,320,416.30
  5. Step 5: Solve for x
    x = 93,468,320,416.30/353,009.48
  6. Step 6: Final answer
    x = 264,775.67

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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.