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Finding the Fourth Proportional to 423,967.23, 585,072.99 and 242,678.25

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Solution

The fourth proportional to 423,967.23, 585,072.99 and 242,678.25 is: 334,894.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,967.23 : 585,072.99 = 242,678.25 : x
  2. Step 2: Convert to fraction form
    423,967.23/585,072.99 = 242,678.25/x
  3. Step 3: Cross multiply
    423,967.23x = 585,072.99 × 242,678.25
  4. Step 4: Simplify right side
    423,967.23x = 141,984,489,335.47
  5. Step 5: Solve for x
    x = 141,984,489,335.47/423,967.23
  6. Step 6: Final answer
    x = 334,894.96

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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.