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Finding the Fourth Proportional to 113,889.60, 170,834.40 and 108,705.60

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Solution

The fourth proportional to 113,889.60, 170,834.40 and 108,705.60 is: 163,058.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,889.60 : 170,834.40 = 108,705.60 : x
  2. Step 2: Convert to fraction form
    113,889.60/170,834.40 = 108,705.60/x
  3. Step 3: Cross multiply
    113,889.60x = 170,834.40 × 108,705.60
  4. Step 4: Simplify right side
    113,889.60x = 18,570,655,952.64
  5. Step 5: Solve for x
    x = 18,570,655,952.64/113,889.60
  6. Step 6: Final answer
    x = 163,058.40

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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.