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Finding the Fourth Proportional to 137,036.60, 205,554.90 and 105,932.60

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Solution

The fourth proportional to 137,036.60, 205,554.90 and 105,932.60 is: 158,898.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,036.60 : 205,554.90 = 105,932.60 : x
  2. Step 2: Convert to fraction form
    137,036.60/205,554.90 = 105,932.60/x
  3. Step 3: Cross multiply
    137,036.60x = 205,554.90 × 105,932.60
  4. Step 4: Simplify right side
    137,036.60x = 21,774,964,999.74
  5. Step 5: Solve for x
    x = 21,774,964,999.74/137,036.60
  6. Step 6: Final answer
    x = 158,898.90

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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.