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Finding the Fourth Proportional to 121,013.91, 167,004.57 and 70,029.02

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Solution

The fourth proportional to 121,013.91, 167,004.57 and 70,029.02 is: 96,643.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,013.91 : 167,004.57 = 70,029.02 : x
  2. Step 2: Convert to fraction form
    121,013.91/167,004.57 = 70,029.02/x
  3. Step 3: Cross multiply
    121,013.91x = 167,004.57 × 70,029.02
  4. Step 4: Simplify right side
    121,013.91x = 11,695,165,537.60
  5. Step 5: Solve for x
    x = 11,695,165,537.60/121,013.91
  6. Step 6: Final answer
    x = 96,643.15

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1.5x scale

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.