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Finding the Fourth Proportional to 113,109.60, 169,664.40 and 88,226.40

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Solution

The fourth proportional to 113,109.60, 169,664.40 and 88,226.40 is: 132,339.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,109.60 : 169,664.40 = 88,226.40 : x
  2. Step 2: Convert to fraction form
    113,109.60/169,664.40 = 88,226.40/x
  3. Step 3: Cross multiply
    113,109.60x = 169,664.40 × 88,226.40
  4. Step 4: Simplify right side
    113,109.60x = 14,968,879,220.16
  5. Step 5: Solve for x
    x = 14,968,879,220.16/113,109.60
  6. Step 6: Final answer
    x = 132,339.60

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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.