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Finding the Fourth Proportional to 114,503.80, 171,771.32 and 39,603.86

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Solution

The fourth proportional to 114,503.80, 171,771.32 and 39,603.86 is: 59,411.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,503.80 : 171,771.32 = 39,603.86 : x
  2. Step 2: Convert to fraction form
    114,503.80/171,771.32 = 39,603.86/x
  3. Step 3: Cross multiply
    114,503.80x = 171,771.32 × 39,603.86
  4. Step 4: Simplify right side
    114,503.80x = 6,802,807,111.28
  5. Step 5: Solve for x
    x = 6,802,807,111.28/114,503.80
  6. Step 6: Final answer
    x = 59,411.19

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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.