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Finding the Fourth Proportional to 292,606.19, 403,796.55 and 158,470.19

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Solution

The fourth proportional to 292,606.19, 403,796.55 and 158,470.19 is: 218,688.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,606.19 : 403,796.55 = 158,470.19 : x
  2. Step 2: Convert to fraction form
    292,606.19/403,796.55 = 158,470.19/x
  3. Step 3: Cross multiply
    292,606.19x = 403,796.55 × 158,470.19
  4. Step 4: Simplify right side
    292,606.19x = 63,989,715,999.84
  5. Step 5: Solve for x
    x = 63,989,715,999.84/292,606.19
  6. Step 6: Final answer
    x = 218,688.87

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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.