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Finding the Fourth Proportional to 117,810.01, 176,648.04 and 80,415.35

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Solution

The fourth proportional to 117,810.01, 176,648.04 and 80,415.35 is: 120,577.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,810.01 : 176,648.04 = 80,415.35 : x
  2. Step 2: Convert to fraction form
    117,810.01/176,648.04 = 80,415.35/x
  3. Step 3: Cross multiply
    117,810.01x = 176,648.04 × 80,415.35
  4. Step 4: Simplify right side
    117,810.01x = 14,205,213,742.60
  5. Step 5: Solve for x
    x = 14,205,213,742.60/117,810.01
  6. Step 6: Final answer
    x = 120,577.31

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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.