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Finding the Fourth Proportional to 121,656.62, 167,886.49 and 67,943.67

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Solution

The fourth proportional to 121,656.62, 167,886.49 and 67,943.67 is: 93,762.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,656.62 : 167,886.49 = 67,943.67 : x
  2. Step 2: Convert to fraction form
    121,656.62/167,886.49 = 67,943.67/x
  3. Step 3: Cross multiply
    121,656.62x = 167,886.49 × 67,943.67
  4. Step 4: Simplify right side
    121,656.62x = 11,406,824,274.02
  5. Step 5: Solve for x
    x = 11,406,824,274.02/121,656.62
  6. Step 6: Final answer
    x = 93,762.46

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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.