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Finding the Fourth Proportional to 326,570,028, 489,855,042 and 135,093,804

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Solution

The fourth proportional to 326,570,028, 489,855,042 and 135,093,804 is: 202,640,706

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,570,028 : 489,855,042 = 135,093,804 : x
  2. Step 2: Convert to fraction form
    326,570,028/489,855,042 = 135,093,804/x
  3. Step 3: Cross multiply
    326,570,028x = 489,855,042 × 135,093,804
  4. Step 4: Simplify right side
    326,570,028x = 66,176,381,032,359,768
  5. Step 5: Solve for x
    x = 66,176,381,032,359,768/326,570,028
  6. Step 6: Final answer
    x = 202,640,706

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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.