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Finding the Fourth Proportional to 100,978.84, 151,548.18 and 56,597.32

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Solution

The fourth proportional to 100,978.84, 151,548.18 and 56,597.32 is: 84,940.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,978.84 : 151,548.18 = 56,597.32 : x
  2. Step 2: Convert to fraction form
    100,978.84/151,548.18 = 56,597.32/x
  3. Step 3: Cross multiply
    100,978.84x = 151,548.18 × 56,597.32
  4. Step 4: Simplify right side
    100,978.84x = 8,577,220,838.88
  5. Step 5: Solve for x
    x = 8,577,220,838.88/100,978.84
  6. Step 6: Final answer
    x = 84,940.77

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.