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Finding the Fourth Proportional to 372,803.60, 559,163.54 and 102,970.10

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Solution

The fourth proportional to 372,803.60, 559,163.54 and 102,970.10 is: 154,443.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,803.60 : 559,163.54 = 102,970.10 : x
  2. Step 2: Convert to fraction form
    372,803.60/559,163.54 = 102,970.10/x
  3. Step 3: Cross multiply
    372,803.60x = 559,163.54 × 102,970.10
  4. Step 4: Simplify right side
    372,803.60x = 57,577,125,630.15
  5. Step 5: Solve for x
    x = 57,577,125,630.15/372,803.60
  6. Step 6: Final answer
    x = 154,443.59

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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.