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Finding the Fourth Proportional to 88,393.95, 132,415.95 and 77,313.15

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Solution

The fourth proportional to 88,393.95, 132,415.95 and 77,313.15 is: 115,816.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,393.95 : 132,415.95 = 77,313.15 : x
  2. Step 2: Convert to fraction form
    88,393.95/132,415.95 = 77,313.15/x
  3. Step 3: Cross multiply
    88,393.95x = 132,415.95 × 77,313.15
  4. Step 4: Simplify right side
    88,393.95x = 10,237,494,204.74
  5. Step 5: Solve for x
    x = 10,237,494,204.74/88,393.95
  6. Step 6: Final answer
    x = 115,816.68

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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.