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Finding the Fourth Proportional to 470,347.75, 705,609.12 and 154,826.83

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Solution

The fourth proportional to 470,347.75, 705,609.12 and 154,826.83 is: 232,269.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,347.75 : 705,609.12 = 154,826.83 : x
  2. Step 2: Convert to fraction form
    470,347.75/705,609.12 = 154,826.83/x
  3. Step 3: Cross multiply
    470,347.75x = 705,609.12 × 154,826.83
  4. Step 4: Simplify right side
    470,347.75x = 109,247,223,268.69
  5. Step 5: Solve for x
    x = 109,247,223,268.69/470,347.75
  6. Step 6: Final answer
    x = 232,269.05

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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.