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Finding the Fourth Proportional to 136,804.23, 205,237.95 and 43,309.98

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Solution

The fourth proportional to 136,804.23, 205,237.95 and 43,309.98 is: 64,974.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,804.23 : 205,237.95 = 43,309.98 : x
  2. Step 2: Convert to fraction form
    136,804.23/205,237.95 = 43,309.98/x
  3. Step 3: Cross multiply
    136,804.23x = 205,237.95 × 43,309.98
  4. Step 4: Simplify right side
    136,804.23x = 8,888,851,509.74
  5. Step 5: Solve for x
    x = 8,888,851,509.74/136,804.23
  6. Step 6: Final answer
    x = 64,974.98

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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.