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Finding the Fourth Proportional to 113,081.60, 169,622.40 and 65,842.40

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Solution

The fourth proportional to 113,081.60, 169,622.40 and 65,842.40 is: 98,763.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,081.60 : 169,622.40 = 65,842.40 : x
  2. Step 2: Convert to fraction form
    113,081.60/169,622.40 = 65,842.40/x
  3. Step 3: Cross multiply
    113,081.60x = 169,622.40 × 65,842.40
  4. Step 4: Simplify right side
    113,081.60x = 11,168,345,909.76
  5. Step 5: Solve for x
    x = 11,168,345,909.76/113,081.60
  6. Step 6: Final answer
    x = 98,763.60

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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.