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Finding the Fourth Proportional to 147,465.60, 203,493.76 and 83,794.56

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Solution

The fourth proportional to 147,465.60, 203,493.76 and 83,794.56 is: 115,631.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,465.60 : 203,493.76 = 83,794.56 : x
  2. Step 2: Convert to fraction form
    147,465.60/203,493.76 = 83,794.56/x
  3. Step 3: Cross multiply
    147,465.60x = 203,493.76 × 83,794.56
  4. Step 4: Simplify right side
    147,465.60x = 17,051,670,081.95
  5. Step 5: Solve for x
    x = 17,051,670,081.95/147,465.60
  6. Step 6: Final answer
    x = 115,631.51

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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.