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Finding the Fourth Proportional to 292,718.90, 403,804.10 and 195,926.87

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Solution

The fourth proportional to 292,718.90, 403,804.10 and 195,926.87 is: 270,280.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,718.90 : 403,804.10 = 195,926.87 : x
  2. Step 2: Convert to fraction form
    292,718.90/403,804.10 = 195,926.87/x
  3. Step 3: Cross multiply
    292,718.90x = 403,804.10 × 195,926.87
  4. Step 4: Simplify right side
    292,718.90x = 79,116,074,905.49
  5. Step 5: Solve for x
    x = 79,116,074,905.49/292,718.90
  6. Step 6: Final answer
    x = 270,280.03

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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.