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Finding the Fourth Proportional to 121,465.03, 167,621.31 and 67,750.01

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Solution

The fourth proportional to 121,465.03, 167,621.31 and 67,750.01 is: 93,494.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,465.03 : 167,621.31 = 67,750.01 : x
  2. Step 2: Convert to fraction form
    121,465.03/167,621.31 = 67,750.01/x
  3. Step 3: Cross multiply
    121,465.03x = 167,621.31 × 67,750.01
  4. Step 4: Simplify right side
    121,465.03x = 11,356,345,428.71
  5. Step 5: Solve for x
    x = 11,356,345,428.71/121,465.03
  6. Step 6: Final answer
    x = 93,494.77

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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.