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Finding the Fourth Proportional to 275,207.64, 412,852.50 and 97,699.79

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Solution

The fourth proportional to 275,207.64, 412,852.50 and 97,699.79 is: 146,564.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,207.64 : 412,852.50 = 97,699.79 : x
  2. Step 2: Convert to fraction form
    275,207.64/412,852.50 = 97,699.79/x
  3. Step 3: Cross multiply
    275,207.64x = 412,852.50 × 97,699.79
  4. Step 4: Simplify right side
    275,207.64x = 40,335,600,486.71
  5. Step 5: Solve for x
    x = 40,335,600,486.71/275,207.64
  6. Step 6: Final answer
    x = 146,564.25

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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.