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Finding the Fourth Proportional to 298,081.15, 447,026.88 and 98,364.31

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Solution

The fourth proportional to 298,081.15, 447,026.88 and 98,364.31 is: 147,515.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,081.15 : 447,026.88 = 98,364.31 : x
  2. Step 2: Convert to fraction form
    298,081.15/447,026.88 = 98,364.31/x
  3. Step 3: Cross multiply
    298,081.15x = 447,026.88 × 98,364.31
  4. Step 4: Simplify right side
    298,081.15x = 43,971,490,602.65
  5. Step 5: Solve for x
    x = 43,971,490,602.65/298,081.15
  6. Step 6: Final answer
    x = 147,515.17

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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.