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Finding the Fourth Proportional to 112,494.22, 168,741.33 and 77,655.31

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Solution

The fourth proportional to 112,494.22, 168,741.33 and 77,655.31 is: 116,482.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,494.22 : 168,741.33 = 77,655.31 : x
  2. Step 2: Convert to fraction form
    112,494.22/168,741.33 = 77,655.31/x
  3. Step 3: Cross multiply
    112,494.22x = 168,741.33 × 77,655.31
  4. Step 4: Simplify right side
    112,494.22x = 13,103,660,290.96
  5. Step 5: Solve for x
    x = 13,103,660,290.96/112,494.22
  6. Step 6: Final answer
    x = 116,482.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.