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Finding the Fourth Proportional to 170,308.85, 235,025.69 and 93,828.78

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Solution

The fourth proportional to 170,308.85, 235,025.69 and 93,828.78 is: 129,483.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,308.85 : 235,025.69 = 93,828.78 : x
  2. Step 2: Convert to fraction form
    170,308.85/235,025.69 = 93,828.78/x
  3. Step 3: Cross multiply
    170,308.85x = 235,025.69 × 93,828.78
  4. Step 4: Simplify right side
    170,308.85x = 22,052,173,292.21
  5. Step 5: Solve for x
    x = 22,052,173,292.21/170,308.85
  6. Step 6: Final answer
    x = 129,483.43

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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.