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Finding the Fourth Proportional to 65,361.40, 97,811.70 and 59,831.80

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Solution

The fourth proportional to 65,361.40, 97,811.70 and 59,831.80 is: 89,536.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,361.40 : 97,811.70 = 59,831.80 : x
  2. Step 2: Convert to fraction form
    65,361.40/97,811.70 = 59,831.80/x
  3. Step 3: Cross multiply
    65,361.40x = 97,811.70 × 59,831.80
  4. Step 4: Simplify right side
    65,361.40x = 5,852,250,072.06
  5. Step 5: Solve for x
    x = 5,852,250,072.06/65,361.40
  6. Step 6: Final answer
    x = 89,536.79

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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.