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Finding the Fourth Proportional to 121,465.72, 167,623.64 and 67,754.20

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Solution

The fourth proportional to 121,465.72, 167,623.64 and 67,754.20 is: 93,501.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,465.72 : 167,623.64 = 67,754.20 : x
  2. Step 2: Convert to fraction form
    121,465.72/167,623.64 = 67,754.20/x
  3. Step 3: Cross multiply
    121,465.72x = 167,623.64 × 67,754.20
  4. Step 4: Simplify right side
    121,465.72x = 11,357,205,629.29
  5. Step 5: Solve for x
    x = 11,357,205,629.29/121,465.72
  6. Step 6: Final answer
    x = 93,501.32

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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.