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Finding the Fourth Proportional to 528,059.85, 792,136.34 and 148,983.90

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Solution

The fourth proportional to 528,059.85, 792,136.34 and 148,983.90 is: 223,488.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,059.85 : 792,136.34 = 148,983.90 : x
  2. Step 2: Convert to fraction form
    528,059.85/792,136.34 = 148,983.90/x
  3. Step 3: Cross multiply
    528,059.85x = 792,136.34 × 148,983.90
  4. Step 4: Simplify right side
    528,059.85x = 118,015,561,264.93
  5. Step 5: Solve for x
    x = 118,015,561,264.93/528,059.85
  6. Step 6: Final answer
    x = 223,488.99

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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.