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Finding the Fourth Proportional to 298,064.06, 447,117.87 and 98,376.38

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Solution

The fourth proportional to 298,064.06, 447,117.87 and 98,376.38 is: 147,571.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,064.06 : 447,117.87 = 98,376.38 : x
  2. Step 2: Convert to fraction form
    298,064.06/447,117.87 = 98,376.38/x
  3. Step 3: Cross multiply
    298,064.06x = 447,117.87 × 98,376.38
  4. Step 4: Simplify right side
    298,064.06x = 43,985,837,483.91
  5. Step 5: Solve for x
    x = 43,985,837,483.91/298,064.06
  6. Step 6: Final answer
    x = 147,571.76

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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.