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Finding the Fourth Proportional to 93,720.70, 140,425.53 and 65,960.38

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Solution

The fourth proportional to 93,720.70, 140,425.53 and 65,960.38 is: 98,831.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,720.70 : 140,425.53 = 65,960.38 : x
  2. Step 2: Convert to fraction form
    93,720.70/140,425.53 = 65,960.38/x
  3. Step 3: Cross multiply
    93,720.70x = 140,425.53 × 65,960.38
  4. Step 4: Simplify right side
    93,720.70x = 9,262,521,320.50
  5. Step 5: Solve for x
    x = 9,262,521,320.50/93,720.70
  6. Step 6: Final answer
    x = 98,831.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.