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Finding the Fourth Proportional to 100,554.60, 150,831.90 and 65,562.60

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Solution

The fourth proportional to 100,554.60, 150,831.90 and 65,562.60 is: 98,343.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,554.60 : 150,831.90 = 65,562.60 : x
  2. Step 2: Convert to fraction form
    100,554.60/150,831.90 = 65,562.60/x
  3. Step 3: Cross multiply
    100,554.60x = 150,831.90 × 65,562.60
  4. Step 4: Simplify right side
    100,554.60x = 9,888,931,526.94
  5. Step 5: Solve for x
    x = 9,888,931,526.94/100,554.60
  6. Step 6: Final answer
    x = 98,343.90

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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.