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Finding the Fourth Proportional to 86,056.96, 118,760.13 and 47,820.04

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Solution

The fourth proportional to 86,056.96, 118,760.13 and 47,820.04 is: 65,992.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,056.96 : 118,760.13 = 47,820.04 : x
  2. Step 2: Convert to fraction form
    86,056.96/118,760.13 = 47,820.04/x
  3. Step 3: Cross multiply
    86,056.96x = 118,760.13 × 47,820.04
  4. Step 4: Simplify right side
    86,056.96x = 5,679,114,167.01
  5. Step 5: Solve for x
    x = 5,679,114,167.01/86,056.96
  6. Step 6: Final answer
    x = 65,992.50

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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.