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Finding the Fourth Proportional to 350,625.84, 525,938.87 and 84,386.35

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Solution

The fourth proportional to 350,625.84, 525,938.87 and 84,386.35 is: 126,579.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,625.84 : 525,938.87 = 84,386.35 : x
  2. Step 2: Convert to fraction form
    350,625.84/525,938.87 = 84,386.35/x
  3. Step 3: Cross multiply
    350,625.84x = 525,938.87 × 84,386.35
  4. Step 4: Simplify right side
    350,625.84x = 44,382,061,562.42
  5. Step 5: Solve for x
    x = 44,382,061,562.42/350,625.84
  6. Step 6: Final answer
    x = 126,579.55

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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.