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Finding the Fourth Proportional to 101,811.12, 152,762.04 and 39,486.48

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Solution

The fourth proportional to 101,811.12, 152,762.04 and 39,486.48 is: 59,247.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,811.12 : 152,762.04 = 39,486.48 : x
  2. Step 2: Convert to fraction form
    101,811.12/152,762.04 = 39,486.48/x
  3. Step 3: Cross multiply
    101,811.12x = 152,762.04 × 39,486.48
  4. Step 4: Simplify right side
    101,811.12x = 6,032,035,237.22
  5. Step 5: Solve for x
    x = 6,032,035,237.22/101,811.12
  6. Step 6: Final answer
    x = 59,247.31

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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.