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Finding the Fourth Proportional to 160,588.84, 240,813.42 and 85,692.40

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Solution

The fourth proportional to 160,588.84, 240,813.42 and 85,692.40 is: 128,501.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,588.84 : 240,813.42 = 85,692.40 : x
  2. Step 2: Convert to fraction form
    160,588.84/240,813.42 = 85,692.40/x
  3. Step 3: Cross multiply
    160,588.84x = 240,813.42 × 85,692.40
  4. Step 4: Simplify right side
    160,588.84x = 20,635,879,912.01
  5. Step 5: Solve for x
    x = 20,635,879,912.01/160,588.84
  6. Step 6: Final answer
    x = 128,501.33

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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.