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Finding the Fourth Proportional to 91,831.60, 137,747.40 and 65,004.40

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Solution

The fourth proportional to 91,831.60, 137,747.40 and 65,004.40 is: 97,506.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,831.60 : 137,747.40 = 65,004.40 : x
  2. Step 2: Convert to fraction form
    91,831.60/137,747.40 = 65,004.40/x
  3. Step 3: Cross multiply
    91,831.60x = 137,747.40 × 65,004.40
  4. Step 4: Simplify right side
    91,831.60x = 8,954,187,088.56
  5. Step 5: Solve for x
    x = 8,954,187,088.56/91,831.60
  6. Step 6: Final answer
    x = 97,506.60

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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.