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Finding the Fourth Proportional to 111,393.60, 167,090.40 and 106,209.60

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Solution

The fourth proportional to 111,393.60, 167,090.40 and 106,209.60 is: 159,314.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,393.60 : 167,090.40 = 106,209.60 : x
  2. Step 2: Convert to fraction form
    111,393.60/167,090.40 = 106,209.60/x
  3. Step 3: Cross multiply
    111,393.60x = 167,090.40 × 106,209.60
  4. Step 4: Simplify right side
    111,393.60x = 17,746,604,547.84
  5. Step 5: Solve for x
    x = 17,746,604,547.84/111,393.60
  6. Step 6: Final answer
    x = 159,314.40

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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.