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Finding the Fourth Proportional to 312,099.18, 468,037.95 and 112,365.93

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Solution

The fourth proportional to 312,099.18, 468,037.95 and 112,365.93 is: 168,509.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,099.18 : 468,037.95 = 112,365.93 : x
  2. Step 2: Convert to fraction form
    312,099.18/468,037.95 = 112,365.93/x
  3. Step 3: Cross multiply
    312,099.18x = 468,037.95 × 112,365.93
  4. Step 4: Simplify right side
    312,099.18x = 52,591,520,860.81
  5. Step 5: Solve for x
    x = 52,591,520,860.81/312,099.18
  6. Step 6: Final answer
    x = 168,509.00

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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.