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Finding the Fourth Proportional to 350,061.16, 525,066.30 and 136,789.12

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Solution

The fourth proportional to 350,061.16, 525,066.30 and 136,789.12 is: 205,173.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,061.16 : 525,066.30 = 136,789.12 : x
  2. Step 2: Convert to fraction form
    350,061.16/525,066.30 = 136,789.12/x
  3. Step 3: Cross multiply
    350,061.16x = 525,066.30 × 136,789.12
  4. Step 4: Simplify right side
    350,061.16x = 71,823,357,118.66
  5. Step 5: Solve for x
    x = 71,823,357,118.66/350,061.16
  6. Step 6: Final answer
    x = 205,173.74

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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.