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Finding the Fourth Proportional to 215,804.18, 297,802.91 and 119,012.11

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Solution

The fourth proportional to 215,804.18, 297,802.91 and 119,012.11 is: 164,232.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,804.18 : 297,802.91 = 119,012.11 : x
  2. Step 2: Convert to fraction form
    215,804.18/297,802.91 = 119,012.11/x
  3. Step 3: Cross multiply
    215,804.18x = 297,802.91 × 119,012.11
  4. Step 4: Simplify right side
    215,804.18x = 35,442,152,236.26
  5. Step 5: Solve for x
    x = 35,442,152,236.26/215,804.18
  6. Step 6: Final answer
    x = 164,232.93

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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.