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Finding the Fourth Proportional to 302,083.60, 453,010.20 and 91,651.60

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Solution

The fourth proportional to 302,083.60, 453,010.20 and 91,651.60 is: 137,442.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,083.60 : 453,010.20 = 91,651.60 : x
  2. Step 2: Convert to fraction form
    302,083.60/453,010.20 = 91,651.60/x
  3. Step 3: Cross multiply
    302,083.60x = 453,010.20 × 91,651.60
  4. Step 4: Simplify right side
    302,083.60x = 41,519,109,646.32
  5. Step 5: Solve for x
    x = 41,519,109,646.32/302,083.60
  6. Step 6: Final answer
    x = 137,442.45

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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.