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Finding the Fourth Proportional to 268,532.51, 402,798.77 and 127,864.67

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Solution

The fourth proportional to 268,532.51, 402,798.77 and 127,864.67 is: 191,797.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,532.51 : 402,798.77 = 127,864.67 : x
  2. Step 2: Convert to fraction form
    268,532.51/402,798.77 = 127,864.67/x
  3. Step 3: Cross multiply
    268,532.51x = 402,798.77 × 127,864.67
  4. Step 4: Simplify right side
    268,532.51x = 51,503,731,163.13
  5. Step 5: Solve for x
    x = 51,503,731,163.13/268,532.51
  6. Step 6: Final answer
    x = 191,797.01

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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.