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Finding the Fourth Proportional to 292,439, 403,566.36 and 158,303

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Solution

The fourth proportional to 292,439, 403,566.36 and 158,303 is: 218,458.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,439 : 403,566.36 = 158,303 : x
  2. Step 2: Convert to fraction form
    292,439/403,566.36 = 158,303/x
  3. Step 3: Cross multiply
    292,439x = 403,566.36 × 158,303
  4. Step 4: Simplify right side
    292,439x = 63,885,765,487.08
  5. Step 5: Solve for x
    x = 63,885,765,487.08/292,439
  6. Step 6: Final answer
    x = 218,458.43

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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.