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Finding the Fourth Proportional to 93,679.79, 129,292.56 and 73,688.18

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Solution

The fourth proportional to 93,679.79, 129,292.56 and 73,688.18 is: 101,701.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,679.79 : 129,292.56 = 73,688.18 : x
  2. Step 2: Convert to fraction form
    93,679.79/129,292.56 = 73,688.18/x
  3. Step 3: Cross multiply
    93,679.79x = 129,292.56 × 73,688.18
  4. Step 4: Simplify right side
    93,679.79x = 9,527,332,787.48
  5. Step 5: Solve for x
    x = 9,527,332,787.48/93,679.79
  6. Step 6: Final answer
    x = 101,701.05

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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.