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Finding the Fourth Proportional to 117,216.95, 175,788.77 and 42,327.32

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Solution

The fourth proportional to 117,216.95, 175,788.77 and 42,327.32 is: 63,477.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,216.95 : 175,788.77 = 42,327.32 : x
  2. Step 2: Convert to fraction form
    117,216.95/175,788.77 = 42,327.32/x
  3. Step 3: Cross multiply
    117,216.95x = 175,788.77 × 42,327.32
  4. Step 4: Simplify right side
    117,216.95x = 7,440,666,429.62
  5. Step 5: Solve for x
    x = 7,440,666,429.62/117,216.95
  6. Step 6: Final answer
    x = 63,477.74

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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.