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Finding the Fourth Proportional to 114,809.90, 171,907.65 and 73,030.70

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Solution

The fourth proportional to 114,809.90, 171,907.65 and 73,030.70 is: 109,350.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,809.90 : 171,907.65 = 73,030.70 : x
  2. Step 2: Convert to fraction form
    114,809.90/171,907.65 = 73,030.70/x
  3. Step 3: Cross multiply
    114,809.90x = 171,907.65 × 73,030.70
  4. Step 4: Simplify right side
    114,809.90x = 12,554,536,014.86
  5. Step 5: Solve for x
    x = 12,554,536,014.86/114,809.90
  6. Step 6: Final answer
    x = 109,350.64

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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.