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Finding the Fourth Proportional to 219,554.64, 302,873.94 and 138,846.24

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Solution

The fourth proportional to 219,554.64, 302,873.94 and 138,846.24 is: 191,537.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,554.64 : 302,873.94 = 138,846.24 : x
  2. Step 2: Convert to fraction form
    219,554.64/302,873.94 = 138,846.24/x
  3. Step 3: Cross multiply
    219,554.64x = 302,873.94 × 138,846.24
  4. Step 4: Simplify right side
    219,554.64x = 42,052,907,762.99
  5. Step 5: Solve for x
    x = 42,052,907,762.99/219,554.64
  6. Step 6: Final answer
    x = 191,537.32

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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.