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Finding the Fourth Proportional to 245,852.70, 338,562.60 and 213,572.58

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Solution

The fourth proportional to 245,852.70, 338,562.60 and 213,572.58 is: 294,109.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,852.70 : 338,562.60 = 213,572.58 : x
  2. Step 2: Convert to fraction form
    245,852.70/338,562.60 = 213,572.58/x
  3. Step 3: Cross multiply
    245,852.70x = 338,562.60 × 213,572.58
  4. Step 4: Simplify right side
    245,852.70x = 72,307,687,973.51
  5. Step 5: Solve for x
    x = 72,307,687,973.51/245,852.70
  6. Step 6: Final answer
    x = 294,109.80

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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.