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Finding the Fourth Proportional to 291,848.19, 437,808.12 and 99,754.39

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Solution

The fourth proportional to 291,848.19, 437,808.12 and 99,754.39 is: 149,643.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,848.19 : 437,808.12 = 99,754.39 : x
  2. Step 2: Convert to fraction form
    291,848.19/437,808.12 = 99,754.39/x
  3. Step 3: Cross multiply
    291,848.19x = 437,808.12 × 99,754.39
  4. Step 4: Simplify right side
    291,848.19x = 43,673,281,947.65
  5. Step 5: Solve for x
    x = 43,673,281,947.65/291,848.19
  6. Step 6: Final answer
    x = 149,643.83

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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.