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Finding the Fourth Proportional to 291,213.35, 401,873.58 and 163,888.94

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Solution

The fourth proportional to 291,213.35, 401,873.58 and 163,888.94 is: 226,166.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,213.35 : 401,873.58 = 163,888.94 : x
  2. Step 2: Convert to fraction form
    291,213.35/401,873.58 = 163,888.94/x
  3. Step 3: Cross multiply
    291,213.35x = 401,873.58 × 163,888.94
  4. Step 4: Simplify right side
    291,213.35x = 65,862,633,030.84
  5. Step 5: Solve for x
    x = 65,862,633,030.84/291,213.35
  6. Step 6: Final answer
    x = 226,166.26

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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.