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Finding the Fourth Proportional to 113,967.60, 170,951.40 and 112,412.40

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Solution

The fourth proportional to 113,967.60, 170,951.40 and 112,412.40 is: 168,618.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,967.60 : 170,951.40 = 112,412.40 : x
  2. Step 2: Convert to fraction form
    113,967.60/170,951.40 = 112,412.40/x
  3. Step 3: Cross multiply
    113,967.60x = 170,951.40 × 112,412.40
  4. Step 4: Simplify right side
    113,967.60x = 19,217,057,157.36
  5. Step 5: Solve for x
    x = 19,217,057,157.36/113,967.60
  6. Step 6: Final answer
    x = 168,618.60

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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.