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Finding the Fourth Proportional to 348,543.80, 522,888.60 and 111,910.40

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Solution

The fourth proportional to 348,543.80, 522,888.60 and 111,910.40 is: 167,889.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,543.80 : 522,888.60 = 111,910.40 : x
  2. Step 2: Convert to fraction form
    348,543.80/522,888.60 = 111,910.40/x
  3. Step 3: Cross multiply
    348,543.80x = 522,888.60 × 111,910.40
  4. Step 4: Simplify right side
    348,543.80x = 58,516,672,381.44
  5. Step 5: Solve for x
    x = 58,516,672,381.44/348,543.80
  6. Step 6: Final answer
    x = 167,889.01

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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.