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Finding the Fourth Proportional to 78,774.64, 118,161.96 and 32,016.56

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Solution

The fourth proportional to 78,774.64, 118,161.96 and 32,016.56 is: 48,024.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,774.64 : 118,161.96 = 32,016.56 : x
  2. Step 2: Convert to fraction form
    78,774.64/118,161.96 = 32,016.56/x
  3. Step 3: Cross multiply
    78,774.64x = 118,161.96 × 32,016.56
  4. Step 4: Simplify right side
    78,774.64x = 3,783,139,482.06
  5. Step 5: Solve for x
    x = 3,783,139,482.06/78,774.64
  6. Step 6: Final answer
    x = 48,024.84

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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.