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Finding the Fourth Proportional to 126,485.52, 174,543.15 and 69,893.25

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Solution

The fourth proportional to 126,485.52, 174,543.15 and 69,893.25 is: 96,448.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,485.52 : 174,543.15 = 69,893.25 : x
  2. Step 2: Convert to fraction form
    126,485.52/174,543.15 = 69,893.25/x
  3. Step 3: Cross multiply
    126,485.52x = 174,543.15 × 69,893.25
  4. Step 4: Simplify right side
    126,485.52x = 12,199,388,018.74
  5. Step 5: Solve for x
    x = 12,199,388,018.74/126,485.52
  6. Step 6: Final answer
    x = 96,448.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.