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Finding the Fourth Proportional to 308,670.88, 463,079.84 and 98,308.48

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Solution

The fourth proportional to 308,670.88, 463,079.84 and 98,308.48 is: 147,486.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,670.88 : 463,079.84 = 98,308.48 : x
  2. Step 2: Convert to fraction form
    308,670.88/463,079.84 = 98,308.48/x
  3. Step 3: Cross multiply
    308,670.88x = 463,079.84 × 98,308.48
  4. Step 4: Simplify right side
    308,670.88x = 45,524,675,189.04
  5. Step 5: Solve for x
    x = 45,524,675,189.04/308,670.88
  6. Step 6: Final answer
    x = 147,486.14

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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.