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Finding the Fourth Proportional to 73,688.63, 101,457.16 and 66,954.11

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Solution

The fourth proportional to 73,688.63, 101,457.16 and 66,954.11 is: 92,184.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,688.63 : 101,457.16 = 66,954.11 : x
  2. Step 2: Convert to fraction form
    73,688.63/101,457.16 = 66,954.11/x
  3. Step 3: Cross multiply
    73,688.63x = 101,457.16 × 66,954.11
  4. Step 4: Simplify right side
    73,688.63x = 6,792,973,176.26
  5. Step 5: Solve for x
    x = 6,792,973,176.26/73,688.63
  6. Step 6: Final answer
    x = 92,184.83

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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.