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Finding the Fourth Proportional to 376,642.01, 519,881.16 and 223,705.10

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Solution

The fourth proportional to 376,642.01, 519,881.16 and 223,705.10 is: 308,781.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,642.01 : 519,881.16 = 223,705.10 : x
  2. Step 2: Convert to fraction form
    376,642.01/519,881.16 = 223,705.10/x
  3. Step 3: Cross multiply
    376,642.01x = 519,881.16 × 223,705.10
  4. Step 4: Simplify right side
    376,642.01x = 116,300,064,286.51
  5. Step 5: Solve for x
    x = 116,300,064,286.51/376,642.01
  6. Step 6: Final answer
    x = 308,781.45

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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.