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Finding the Fourth Proportional to 219,970.60, 303,559.42 and 119,368.60

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Solution

The fourth proportional to 219,970.60, 303,559.42 and 119,368.60 is: 164,728.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,970.60 : 303,559.42 = 119,368.60 : x
  2. Step 2: Convert to fraction form
    219,970.60/303,559.42 = 119,368.60/x
  3. Step 3: Cross multiply
    219,970.60x = 303,559.42 × 119,368.60
  4. Step 4: Simplify right side
    219,970.60x = 36,235,462,982.21
  5. Step 5: Solve for x
    x = 36,235,462,982.21/219,970.60
  6. Step 6: Final answer
    x = 164,728.66

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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.