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Finding the Fourth Proportional to 127,611.65, 191,528.11 and 127,316.41

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Solution

The fourth proportional to 127,611.65, 191,528.11 and 127,316.41 is: 191,084.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,611.65 : 191,528.11 = 127,316.41 : x
  2. Step 2: Convert to fraction form
    127,611.65/191,528.11 = 127,316.41/x
  3. Step 3: Cross multiply
    127,611.65x = 191,528.11 × 127,316.41
  4. Step 4: Simplify right side
    127,611.65x = 24,384,671,059.61
  5. Step 5: Solve for x
    x = 24,384,671,059.61/127,611.65
  6. Step 6: Final answer
    x = 191,084.99

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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.