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Finding the Fourth Proportional to 475,240.77, 712,870.26 and 155,393.84

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Solution

The fourth proportional to 475,240.77, 712,870.26 and 155,393.84 is: 233,093.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,240.77 : 712,870.26 = 155,393.84 : x
  2. Step 2: Convert to fraction form
    475,240.77/712,870.26 = 155,393.84/x
  3. Step 3: Cross multiply
    475,240.77x = 712,870.26 × 155,393.84
  4. Step 4: Simplify right side
    475,240.77x = 110,775,643,558.85
  5. Step 5: Solve for x
    x = 110,775,643,558.85/475,240.77
  6. Step 6: Final answer
    x = 233,093.73

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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.