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Finding the Fourth Proportional to 350,543.40, 525,815.10 and 113,893.80

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Solution

The fourth proportional to 350,543.40, 525,815.10 and 113,893.80 is: 170,840.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,543.40 : 525,815.10 = 113,893.80 : x
  2. Step 2: Convert to fraction form
    350,543.40/525,815.10 = 113,893.80/x
  3. Step 3: Cross multiply
    350,543.40x = 525,815.10 × 113,893.80
  4. Step 4: Simplify right side
    350,543.40x = 59,887,079,836.38
  5. Step 5: Solve for x
    x = 59,887,079,836.38/350,543.40
  6. Step 6: Final answer
    x = 170,840.70

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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.