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Finding the Fourth Proportional to 121,249.01, 167,323.98 and 70,271.64

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Solution

The fourth proportional to 121,249.01, 167,323.98 and 70,271.64 is: 96,975.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,249.01 : 167,323.98 = 70,271.64 : x
  2. Step 2: Convert to fraction form
    121,249.01/167,323.98 = 70,271.64/x
  3. Step 3: Cross multiply
    121,249.01x = 167,323.98 × 70,271.64
  4. Step 4: Simplify right side
    121,249.01x = 11,758,130,485.93
  5. Step 5: Solve for x
    x = 11,758,130,485.93/121,249.01
  6. Step 6: Final answer
    x = 96,975.07

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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.