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Finding the Fourth Proportional to 100,855.01, 151,298.93 and 29,784.84

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Solution

The fourth proportional to 100,855.01, 151,298.93 and 29,784.84 is: 44,682.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,855.01 : 151,298.93 = 29,784.84 : x
  2. Step 2: Convert to fraction form
    100,855.01/151,298.93 = 29,784.84/x
  3. Step 3: Cross multiply
    100,855.01x = 151,298.93 × 29,784.84
  4. Step 4: Simplify right side
    100,855.01x = 4,506,413,665.73
  5. Step 5: Solve for x
    x = 4,506,413,665.73/100,855.01
  6. Step 6: Final answer
    x = 44,682.10

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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.