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Finding the Fourth Proportional to 438,782.94, 658,174.50 and 158,300.10

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Solution

The fourth proportional to 438,782.94, 658,174.50 and 158,300.10 is: 237,450.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,782.94 : 658,174.50 = 158,300.10 : x
  2. Step 2: Convert to fraction form
    438,782.94/658,174.50 = 158,300.10/x
  3. Step 3: Cross multiply
    438,782.94x = 658,174.50 × 158,300.10
  4. Step 4: Simplify right side
    438,782.94x = 104,189,089,167.45
  5. Step 5: Solve for x
    x = 104,189,089,167.45/438,782.94
  6. Step 6: Final answer
    x = 237,450.18

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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.