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Finding the Fourth Proportional to 121,501.51, 167,669.70 and 67,058.80

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Solution

The fourth proportional to 121,501.51, 167,669.70 and 67,058.80 is: 92,539.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,501.51 : 167,669.70 = 67,058.80 : x
  2. Step 2: Convert to fraction form
    121,501.51/167,669.70 = 67,058.80/x
  3. Step 3: Cross multiply
    121,501.51x = 167,669.70 × 67,058.80
  4. Step 4: Simplify right side
    121,501.51x = 11,243,728,878.36
  5. Step 5: Solve for x
    x = 11,243,728,878.36/121,501.51
  6. Step 6: Final answer
    x = 92,539.83

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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.