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Finding the Fourth Proportional to 88,307.71, 121,859.71 and 50,584.39

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Solution

The fourth proportional to 88,307.71, 121,859.71 and 50,584.39 is: 69,803.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,307.71 : 121,859.71 = 50,584.39 : x
  2. Step 2: Convert to fraction form
    88,307.71/121,859.71 = 50,584.39/x
  3. Step 3: Cross multiply
    88,307.71x = 121,859.71 × 50,584.39
  4. Step 4: Simplify right side
    88,307.71x = 6,164,199,095.93
  5. Step 5: Solve for x
    x = 6,164,199,095.93/88,307.71
  6. Step 6: Final answer
    x = 69,803.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.