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Finding the Fourth Proportional to 472,800.88, 709,188.36 and 157,263.76

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Solution

The fourth proportional to 472,800.88, 709,188.36 and 157,263.76 is: 235,891.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,800.88 : 709,188.36 = 157,263.76 : x
  2. Step 2: Convert to fraction form
    472,800.88/709,188.36 = 157,263.76/x
  3. Step 3: Cross multiply
    472,800.88x = 709,188.36 × 157,263.76
  4. Step 4: Simplify right side
    472,800.88x = 111,529,628,041.83
  5. Step 5: Solve for x
    x = 111,529,628,041.83/472,800.88
  6. Step 6: Final answer
    x = 235,891.33

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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.