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Finding the Fourth Proportional to 350,541.40, 525,812.10 and 163,917.40

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Solution

The fourth proportional to 350,541.40, 525,812.10 and 163,917.40 is: 245,876.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,541.40 : 525,812.10 = 163,917.40 : x
  2. Step 2: Convert to fraction form
    350,541.40/525,812.10 = 163,917.40/x
  3. Step 3: Cross multiply
    350,541.40x = 525,812.10 × 163,917.40
  4. Step 4: Simplify right side
    350,541.40x = 86,189,752,320.54
  5. Step 5: Solve for x
    x = 86,189,752,320.54/350,541.40
  6. Step 6: Final answer
    x = 245,876.10

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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.