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Finding the Fourth Proportional to 248,019.82, 371,789.16 and 98,210.32

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Solution

The fourth proportional to 248,019.82, 371,789.16 and 98,210.32 is: 147,220.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,019.82 : 371,789.16 = 98,210.32 : x
  2. Step 2: Convert to fraction form
    248,019.82/371,789.16 = 98,210.32/x
  3. Step 3: Cross multiply
    248,019.82x = 371,789.16 × 98,210.32
  4. Step 4: Simplify right side
    248,019.82x = 36,513,532,376.13
  5. Step 5: Solve for x
    x = 36,513,532,376.13/248,019.82
  6. Step 6: Final answer
    x = 147,220.22

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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.