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Finding the Fourth Proportional to 117,809.75, 162,577.46 and 64,817.75

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Solution

The fourth proportional to 117,809.75, 162,577.46 and 64,817.75 is: 89,448.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,809.75 : 162,577.46 = 64,817.75 : x
  2. Step 2: Convert to fraction form
    117,809.75/162,577.46 = 64,817.75/x
  3. Step 3: Cross multiply
    117,809.75x = 162,577.46 × 64,817.75
  4. Step 4: Simplify right side
    117,809.75x = 10,537,905,157.92
  5. Step 5: Solve for x
    x = 10,537,905,157.92/117,809.75
  6. Step 6: Final answer
    x = 89,448.50

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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.