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Finding the Fourth Proportional to 88,165.77, 121,713.56 and 55,933.31

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Solution

The fourth proportional to 88,165.77, 121,713.56 and 55,933.31 is: 77,216.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,165.77 : 121,713.56 = 55,933.31 : x
  2. Step 2: Convert to fraction form
    88,165.77/121,713.56 = 55,933.31/x
  3. Step 3: Cross multiply
    88,165.77x = 121,713.56 × 55,933.31
  4. Step 4: Simplify right side
    88,165.77x = 6,807,841,674.12
  5. Step 5: Solve for x
    x = 6,807,841,674.12/88,165.77
  6. Step 6: Final answer
    x = 77,216.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.