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Finding the Fourth Proportional to 127,509.66, 175,858.65 and 113,179.95

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Solution

The fourth proportional to 127,509.66, 175,858.65 and 113,179.95 is: 156,095.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,509.66 : 175,858.65 = 113,179.95 : x
  2. Step 2: Convert to fraction form
    127,509.66/175,858.65 = 113,179.95/x
  3. Step 3: Cross multiply
    127,509.66x = 175,858.65 × 113,179.95
  4. Step 4: Simplify right side
    127,509.66x = 19,903,673,214.07
  5. Step 5: Solve for x
    x = 19,903,673,214.07/127,509.66
  6. Step 6: Final answer
    x = 156,095.41

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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.