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Finding the Fourth Proportional to 369,054.48, 553,555.80 and 210,786.96

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Solution

The fourth proportional to 369,054.48, 553,555.80 and 210,786.96 is: 316,165.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,054.48 : 553,555.80 = 210,786.96 : x
  2. Step 2: Convert to fraction form
    369,054.48/553,555.80 = 210,786.96/x
  3. Step 3: Cross multiply
    369,054.48x = 553,555.80 × 210,786.96
  4. Step 4: Simplify right side
    369,054.48x = 116,682,344,272.37
  5. Step 5: Solve for x
    x = 116,682,344,272.37/369,054.48
  6. Step 6: Final answer
    x = 316,165.64

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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.