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Finding the Fourth Proportional to 121,089.47, 167,088.42 and 67,370.67

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Solution

The fourth proportional to 121,089.47, 167,088.42 and 67,370.67 is: 92,963.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,089.47 : 167,088.42 = 67,370.67 : x
  2. Step 2: Convert to fraction form
    121,089.47/167,088.42 = 67,370.67/x
  3. Step 3: Cross multiply
    121,089.47x = 167,088.42 × 67,370.67
  4. Step 4: Simplify right side
    121,089.47x = 11,256,858,804.64
  5. Step 5: Solve for x
    x = 11,256,858,804.64/121,089.47
  6. Step 6: Final answer
    x = 92,963.16

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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.