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Finding the Fourth Proportional to 291,368.14, 437,051.56 and 91,705.98

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Solution

The fourth proportional to 291,368.14, 437,051.56 and 91,705.98 is: 137,558.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,368.14 : 437,051.56 = 91,705.98 : x
  2. Step 2: Convert to fraction form
    291,368.14/437,051.56 = 91,705.98/x
  3. Step 3: Cross multiply
    291,368.14x = 437,051.56 × 91,705.98
  4. Step 4: Simplify right side
    291,368.14x = 40,080,241,620.33
  5. Step 5: Solve for x
    x = 40,080,241,620.33/291,368.14
  6. Step 6: Final answer
    x = 137,558.77

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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.