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Finding the Fourth Proportional to 479,816.77, 719,726.07 and 124,830.22

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Solution

The fourth proportional to 479,816.77, 719,726.07 and 124,830.22 is: 187,245.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,816.77 : 719,726.07 = 124,830.22 : x
  2. Step 2: Convert to fraction form
    479,816.77/719,726.07 = 124,830.22/x
  3. Step 3: Cross multiply
    479,816.77x = 719,726.07 × 124,830.22
  4. Step 4: Simplify right side
    479,816.77x = 89,843,563,657.84
  5. Step 5: Solve for x
    x = 89,843,563,657.84/479,816.77
  6. Step 6: Final answer
    x = 187,245.57

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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.