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Finding the Fourth Proportional to 219,268.80, 302,583.60 and 123,796.80

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Solution

The fourth proportional to 219,268.80, 302,583.60 and 123,796.80 is: 170,835.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,268.80 : 302,583.60 = 123,796.80 : x
  2. Step 2: Convert to fraction form
    219,268.80/302,583.60 = 123,796.80/x
  3. Step 3: Cross multiply
    219,268.80x = 302,583.60 × 123,796.80
  4. Step 4: Simplify right side
    219,268.80x = 37,458,881,412.48
  5. Step 5: Solve for x
    x = 37,458,881,412.48/219,268.80
  6. Step 6: Final answer
    x = 170,835.44

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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.