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Finding the Fourth Proportional to 352,970.64, 487,104.12 and 191,828.25

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Solution

The fourth proportional to 352,970.64, 487,104.12 and 191,828.25 is: 264,725.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,970.64 : 487,104.12 = 191,828.25 : x
  2. Step 2: Convert to fraction form
    352,970.64/487,104.12 = 191,828.25/x
  3. Step 3: Cross multiply
    352,970.64x = 487,104.12 × 191,828.25
  4. Step 4: Simplify right side
    352,970.64x = 93,440,330,907.39
  5. Step 5: Solve for x
    x = 93,440,330,907.39/352,970.64
  6. Step 6: Final answer
    x = 264,725.50

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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.