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Finding the Fourth Proportional to 78,492.96, 117,739.44 and 23,088.96

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Solution

The fourth proportional to 78,492.96, 117,739.44 and 23,088.96 is: 34,633.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,492.96 : 117,739.44 = 23,088.96 : x
  2. Step 2: Convert to fraction form
    78,492.96/117,739.44 = 23,088.96/x
  3. Step 3: Cross multiply
    78,492.96x = 117,739.44 × 23,088.96
  4. Step 4: Simplify right side
    78,492.96x = 2,718,481,220.58
  5. Step 5: Solve for x
    x = 2,718,481,220.58/78,492.96
  6. Step 6: Final answer
    x = 34,633.44

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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.