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Finding the Fourth Proportional to 248,751.95, 342,929.88 and 210,357.27

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Solution

The fourth proportional to 248,751.95, 342,929.88 and 210,357.27 is: 289,998.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,751.95 : 342,929.88 = 210,357.27 : x
  2. Step 2: Convert to fraction form
    248,751.95/342,929.88 = 210,357.27/x
  3. Step 3: Cross multiply
    248,751.95x = 342,929.88 × 210,357.27
  4. Step 4: Simplify right side
    248,751.95x = 72,137,793,358.23
  5. Step 5: Solve for x
    x = 72,137,793,358.23/248,751.95
  6. Step 6: Final answer
    x = 289,998.91

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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.