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Finding the Fourth Proportional to 340,925.76, 470,480.76 and 187,970.04

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Solution

The fourth proportional to 340,925.76, 470,480.76 and 187,970.04 is: 259,400.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,925.76 : 470,480.76 = 187,970.04 : x
  2. Step 2: Convert to fraction form
    340,925.76/470,480.76 = 187,970.04/x
  3. Step 3: Cross multiply
    340,925.76x = 470,480.76 × 187,970.04
  4. Step 4: Simplify right side
    340,925.76x = 88,436,287,276.43
  5. Step 5: Solve for x
    x = 88,436,287,276.43/340,925.76
  6. Step 6: Final answer
    x = 259,400.43

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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.