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Finding the Fourth Proportional to 160,558.84, 240,768.42 and 85,662.28

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Solution

The fourth proportional to 160,558.84, 240,768.42 and 85,662.28 is: 128,456.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,558.84 : 240,768.42 = 85,662.28 : x
  2. Step 2: Convert to fraction form
    160,558.84/240,768.42 = 85,662.28/x
  3. Step 3: Cross multiply
    160,558.84x = 240,768.42 × 85,662.28
  4. Step 4: Simplify right side
    160,558.84x = 20,624,771,809.20
  5. Step 5: Solve for x
    x = 20,624,771,809.20/160,558.84
  6. Step 6: Final answer
    x = 128,456.16

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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.