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Finding the Fourth Proportional to 291,073.88, 401,534.92 and 170,136.16

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Solution

The fourth proportional to 291,073.88, 401,534.92 and 170,136.16 is: 234,701.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,073.88 : 401,534.92 = 170,136.16 : x
  2. Step 2: Convert to fraction form
    291,073.88/401,534.92 = 170,136.16/x
  3. Step 3: Cross multiply
    291,073.88x = 401,534.92 × 170,136.16
  4. Step 4: Simplify right side
    291,073.88x = 68,315,609,394.71
  5. Step 5: Solve for x
    x = 68,315,609,394.71/291,073.88
  6. Step 6: Final answer
    x = 234,701.96

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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.