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Finding the Fourth Proportional to 292,035, 403,008.30 and 157,899

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Solution

The fourth proportional to 292,035, 403,008.30 and 157,899 is: 217,900.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,035 : 403,008.30 = 157,899 : x
  2. Step 2: Convert to fraction form
    292,035/403,008.30 = 157,899/x
  3. Step 3: Cross multiply
    292,035x = 403,008.30 × 157,899
  4. Step 4: Simplify right side
    292,035x = 63,634,607,561.70
  5. Step 5: Solve for x
    x = 63,634,607,561.70/292,035
  6. Step 6: Final answer
    x = 217,900.62

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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.