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Finding the Fourth Proportional to 207,720.24, 286,662.24 and 117,079.98

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Solution

The fourth proportional to 207,720.24, 286,662.24 and 117,079.98 is: 161,575.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,720.24 : 286,662.24 = 117,079.98 : x
  2. Step 2: Convert to fraction form
    207,720.24/286,662.24 = 117,079.98/x
  3. Step 3: Cross multiply
    207,720.24x = 286,662.24 × 117,079.98
  4. Step 4: Simplify right side
    207,720.24x = 33,562,409,325.96
  5. Step 5: Solve for x
    x = 33,562,409,325.96/207,720.24
  6. Step 6: Final answer
    x = 161,575.06

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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.