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Finding the Fourth Proportional to 470,479.73, 705,746.63 and 133,494.01

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Solution

The fourth proportional to 470,479.73, 705,746.63 and 133,494.01 is: 200,248.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,479.73 : 705,746.63 = 133,494.01 : x
  2. Step 2: Convert to fraction form
    470,479.73/705,746.63 = 133,494.01/x
  3. Step 3: Cross multiply
    470,479.73x = 705,746.63 × 133,494.01
  4. Step 4: Simplify right side
    470,479.73x = 94,212,946,252.05
  5. Step 5: Solve for x
    x = 94,212,946,252.05/470,479.73
  6. Step 6: Final answer
    x = 200,248.69

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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.