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Finding the Fourth Proportional to 73,859.40, 110,675.70 and 55,051.20

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Solution

The fourth proportional to 73,859.40, 110,675.70 and 55,051.20 is: 82,492.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,859.40 : 110,675.70 = 55,051.20 : x
  2. Step 2: Convert to fraction form
    73,859.40/110,675.70 = 55,051.20/x
  3. Step 3: Cross multiply
    73,859.40x = 110,675.70 × 55,051.20
  4. Step 4: Simplify right side
    73,859.40x = 6,092,830,095.84
  5. Step 5: Solve for x
    x = 6,092,830,095.84/73,859.40
  6. Step 6: Final answer
    x = 82,492.28

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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.