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Finding the Fourth Proportional to 101,711.80, 152,567.70 and 26,831.80

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Solution

The fourth proportional to 101,711.80, 152,567.70 and 26,831.80 is: 40,247.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,711.80 : 152,567.70 = 26,831.80 : x
  2. Step 2: Convert to fraction form
    101,711.80/152,567.70 = 26,831.80/x
  3. Step 3: Cross multiply
    101,711.80x = 152,567.70 × 26,831.80
  4. Step 4: Simplify right side
    101,711.80x = 4,093,666,012.86
  5. Step 5: Solve for x
    x = 4,093,666,012.86/101,711.80
  6. Step 6: Final answer
    x = 40,247.70

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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.