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Finding the Fourth Proportional to 168,879.60, 233,052.12 and 93,428.64

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Solution

The fourth proportional to 168,879.60, 233,052.12 and 93,428.64 is: 128,930.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,879.60 : 233,052.12 = 93,428.64 : x
  2. Step 2: Convert to fraction form
    168,879.60/233,052.12 = 93,428.64/x
  3. Step 3: Cross multiply
    168,879.60x = 233,052.12 × 93,428.64
  4. Step 4: Simplify right side
    168,879.60x = 21,773,742,620.72
  5. Step 5: Solve for x
    x = 21,773,742,620.72/168,879.60
  6. Step 6: Final answer
    x = 128,930.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.