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Finding the Fourth Proportional to 112,495.64, 168,741.17 and 45,920.17

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Solution

The fourth proportional to 112,495.64, 168,741.17 and 45,920.17 is: 68,879.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,495.64 : 168,741.17 = 45,920.17 : x
  2. Step 2: Convert to fraction form
    112,495.64/168,741.17 = 45,920.17/x
  3. Step 3: Cross multiply
    112,495.64x = 168,741.17 × 45,920.17
  4. Step 4: Simplify right side
    112,495.64x = 7,748,622,675.06
  5. Step 5: Solve for x
    x = 7,748,622,675.06/112,495.64
  6. Step 6: Final answer
    x = 68,879.32

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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.