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Finding the Fourth Proportional to 111,201.60, 166,802.40 and 105,758.40

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Solution

The fourth proportional to 111,201.60, 166,802.40 and 105,758.40 is: 158,637.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,201.60 : 166,802.40 = 105,758.40 : x
  2. Step 2: Convert to fraction form
    111,201.60/166,802.40 = 105,758.40/x
  3. Step 3: Cross multiply
    111,201.60x = 166,802.40 × 105,758.40
  4. Step 4: Simplify right side
    111,201.60x = 17,640,754,940.16
  5. Step 5: Solve for x
    x = 17,640,754,940.16/111,201.60
  6. Step 6: Final answer
    x = 158,637.60

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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.