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Finding the Fourth Proportional to 127,804.16, 176,382.87 and 76,833.50

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Solution

The fourth proportional to 127,804.16, 176,382.87 and 76,833.50 is: 106,038.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,804.16 : 176,382.87 = 76,833.50 : x
  2. Step 2: Convert to fraction form
    127,804.16/176,382.87 = 76,833.50/x
  3. Step 3: Cross multiply
    127,804.16x = 176,382.87 × 76,833.50
  4. Step 4: Simplify right side
    127,804.16x = 13,552,112,072.11
  5. Step 5: Solve for x
    x = 13,552,112,072.11/127,804.16
  6. Step 6: Final answer
    x = 106,038.11

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