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Finding the Fourth Proportional to 291,215.21, 436,927.94 and 101,703.48

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Solution

The fourth proportional to 291,215.21, 436,927.94 and 101,703.48 is: 152,591.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,215.21 : 436,927.94 = 101,703.48 : x
  2. Step 2: Convert to fraction form
    291,215.21/436,927.94 = 101,703.48/x
  3. Step 3: Cross multiply
    291,215.21x = 436,927.94 × 101,703.48
  4. Step 4: Simplify right side
    291,215.21x = 44,437,091,498.71
  5. Step 5: Solve for x
    x = 44,437,091,498.71/291,215.21
  6. Step 6: Final answer
    x = 152,591.93

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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.