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Finding the Fourth Proportional to 115,745.60, 173,618.40 and 32,639.60

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Solution

The fourth proportional to 115,745.60, 173,618.40 and 32,639.60 is: 48,959.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,745.60 : 173,618.40 = 32,639.60 : x
  2. Step 2: Convert to fraction form
    115,745.60/173,618.40 = 32,639.60/x
  3. Step 3: Cross multiply
    115,745.60x = 173,618.40 × 32,639.60
  4. Step 4: Simplify right side
    115,745.60x = 5,666,835,128.64
  5. Step 5: Solve for x
    x = 5,666,835,128.64/115,745.60
  6. Step 6: Final answer
    x = 48,959.40

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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.