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Finding the Fourth Proportional to 350,091.61, 525,090.26 and 136,710.47

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Solution

The fourth proportional to 350,091.61, 525,090.26 and 136,710.47 is: 205,047.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,091.61 : 525,090.26 = 136,710.47 : x
  2. Step 2: Convert to fraction form
    350,091.61/525,090.26 = 136,710.47/x
  3. Step 3: Cross multiply
    350,091.61x = 525,090.26 × 136,710.47
  4. Step 4: Simplify right side
    350,091.61x = 71,785,332,928.02
  5. Step 5: Solve for x
    x = 71,785,332,928.02/350,091.61
  6. Step 6: Final answer
    x = 205,047.28

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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.