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Finding the Fourth Proportional to 339,766.71, 468,866.08 and 186,803.72

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Solution

The fourth proportional to 339,766.71, 468,866.08 and 186,803.72 is: 257,782.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,766.71 : 468,866.08 = 186,803.72 : x
  2. Step 2: Convert to fraction form
    339,766.71/468,866.08 = 186,803.72/x
  3. Step 3: Cross multiply
    339,766.71x = 468,866.08 × 186,803.72
  4. Step 4: Simplify right side
    339,766.71x = 87,585,927,925.82
  5. Step 5: Solve for x
    x = 87,585,927,925.82/339,766.71
  6. Step 6: Final answer
    x = 257,782.55

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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.