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Finding the Fourth Proportional to 112,013.60, 168,020.40 and 106,570.40

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Solution

The fourth proportional to 112,013.60, 168,020.40 and 106,570.40 is: 159,855.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,013.60 : 168,020.40 = 106,570.40 : x
  2. Step 2: Convert to fraction form
    112,013.60/168,020.40 = 106,570.40/x
  3. Step 3: Cross multiply
    112,013.60x = 168,020.40 × 106,570.40
  4. Step 4: Simplify right side
    112,013.60x = 17,906,001,236.16
  5. Step 5: Solve for x
    x = 17,906,001,236.16/112,013.60
  6. Step 6: Final answer
    x = 159,855.60

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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.