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Finding the Fourth Proportional to 228,878.10, 315,788.42 and 132,075.22

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Solution

The fourth proportional to 228,878.10, 315,788.42 and 132,075.22 is: 182,227.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,878.10 : 315,788.42 = 132,075.22 : x
  2. Step 2: Convert to fraction form
    228,878.10/315,788.42 = 132,075.22/x
  3. Step 3: Cross multiply
    228,878.10x = 315,788.42 × 132,075.22
  4. Step 4: Simplify right side
    228,878.10x = 41,707,825,044.95
  5. Step 5: Solve for x
    x = 41,707,825,044.95/228,878.10
  6. Step 6: Final answer
    x = 182,227.24

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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.