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Finding the Fourth Proportional to 111,193.80, 166,812.30 and 48,013.80

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Solution

The fourth proportional to 111,193.80, 166,812.30 and 48,013.80 is: 72,030.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,193.80 : 166,812.30 = 48,013.80 : x
  2. Step 2: Convert to fraction form
    111,193.80/166,812.30 = 48,013.80/x
  3. Step 3: Cross multiply
    111,193.80x = 166,812.30 × 48,013.80
  4. Step 4: Simplify right side
    111,193.80x = 8,009,292,409.74
  5. Step 5: Solve for x
    x = 8,009,292,409.74/111,193.80
  6. Step 6: Final answer
    x = 72,030.03

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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.