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Finding the Fourth Proportional to 113,509.92, 170,265.12 and 43,396.32

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Solution

The fourth proportional to 113,509.92, 170,265.12 and 43,396.32 is: 65,094.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,509.92 : 170,265.12 = 43,396.32 : x
  2. Step 2: Convert to fraction form
    113,509.92/170,265.12 = 43,396.32/x
  3. Step 3: Cross multiply
    113,509.92x = 170,265.12 × 43,396.32
  4. Step 4: Simplify right side
    113,509.92x = 7,388,879,632.36
  5. Step 5: Solve for x
    x = 7,388,879,632.36/113,509.92
  6. Step 6: Final answer
    x = 65,094.57

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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.