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Finding the Fourth Proportional to 270,235.36, 405,134.40 and 112,582.24

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Solution

The fourth proportional to 270,235.36, 405,134.40 and 112,582.24 is: 168,782.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,235.36 : 405,134.40 = 112,582.24 : x
  2. Step 2: Convert to fraction form
    270,235.36/405,134.40 = 112,582.24/x
  3. Step 3: Cross multiply
    270,235.36x = 405,134.40 × 112,582.24
  4. Step 4: Simplify right side
    270,235.36x = 45,610,938,253.06
  5. Step 5: Solve for x
    x = 45,610,938,253.06/270,235.36
  6. Step 6: Final answer
    x = 168,782.27

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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.