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Finding the Fourth Proportional to 324,555.51, 486,848.31 and 99,926.01

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Solution

The fourth proportional to 324,555.51, 486,848.31 and 99,926.01 is: 149,893.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,555.51 : 486,848.31 = 99,926.01 : x
  2. Step 2: Convert to fraction form
    324,555.51/486,848.31 = 99,926.01/x
  3. Step 3: Cross multiply
    324,555.51x = 486,848.31 × 99,926.01
  4. Step 4: Simplify right side
    324,555.51x = 48,648,808,718.82
  5. Step 5: Solve for x
    x = 48,648,808,718.82/324,555.51
  6. Step 6: Final answer
    x = 149,893.64

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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.