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Finding the Fourth Proportional to 112,454.48, 155,184.48 and 61,464.92

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Solution

The fourth proportional to 112,454.48, 155,184.48 and 61,464.92 is: 84,820.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,454.48 : 155,184.48 = 61,464.92 : x
  2. Step 2: Convert to fraction form
    112,454.48/155,184.48 = 61,464.92/x
  3. Step 3: Cross multiply
    112,454.48x = 155,184.48 × 61,464.92
  4. Step 4: Simplify right side
    112,454.48x = 9,538,401,648.44
  5. Step 5: Solve for x
    x = 9,538,401,648.44/112,454.48
  6. Step 6: Final answer
    x = 84,820.11

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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.