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Finding the Fourth Proportional to 372,603.60, 559,051.20 and 135,970.20

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Solution

The fourth proportional to 372,603.60, 559,051.20 and 135,970.20 is: 204,008.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,603.60 : 559,051.20 = 135,970.20 : x
  2. Step 2: Convert to fraction form
    372,603.60/559,051.20 = 135,970.20/x
  3. Step 3: Cross multiply
    372,603.60x = 559,051.20 × 135,970.20
  4. Step 4: Simplify right side
    372,603.60x = 76,014,303,474.24
  5. Step 5: Solve for x
    x = 76,014,303,474.24/372,603.60
  6. Step 6: Final answer
    x = 204,008.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.