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Finding the Fourth Proportional to 202,509.60, 303,618.60 and 113,790.30

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Solution

The fourth proportional to 202,509.60, 303,618.60 and 113,790.30 is: 170,603.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,509.60 : 303,618.60 = 113,790.30 : x
  2. Step 2: Convert to fraction form
    202,509.60/303,618.60 = 113,790.30/x
  3. Step 3: Cross multiply
    202,509.60x = 303,618.60 × 113,790.30
  4. Step 4: Simplify right side
    202,509.60x = 34,548,851,579.58
  5. Step 5: Solve for x
    x = 34,548,851,579.58/202,509.60
  6. Step 6: Final answer
    x = 170,603.52

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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.