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Finding the Fourth Proportional to 117,572.80, 176,303.56 and 45,559.44

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Solution

The fourth proportional to 117,572.80, 176,303.56 and 45,559.44 is: 68,317.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,572.80 : 176,303.56 = 45,559.44 : x
  2. Step 2: Convert to fraction form
    117,572.80/176,303.56 = 45,559.44/x
  3. Step 3: Cross multiply
    117,572.80x = 176,303.56 × 45,559.44
  4. Step 4: Simplify right side
    117,572.80x = 8,032,291,463.61
  5. Step 5: Solve for x
    x = 8,032,291,463.61/117,572.80
  6. Step 6: Final answer
    x = 68,317.60

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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.