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Finding the Fourth Proportional to 372,495.60, 558,830.16 and 106,259.76

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Solution

The fourth proportional to 372,495.60, 558,830.16 and 106,259.76 is: 159,414.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,495.60 : 558,830.16 = 106,259.76 : x
  2. Step 2: Convert to fraction form
    372,495.60/558,830.16 = 106,259.76/x
  3. Step 3: Cross multiply
    372,495.60x = 558,830.16 × 106,259.76
  4. Step 4: Simplify right side
    372,495.60x = 59,381,158,682.36
  5. Step 5: Solve for x
    x = 59,381,158,682.36/372,495.60
  6. Step 6: Final answer
    x = 159,414.39

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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.