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Finding the Fourth Proportional to 228,477.95, 315,309.43 and 126,503.41

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Solution

The fourth proportional to 228,477.95, 315,309.43 and 126,503.41 is: 174,580.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,477.95 : 315,309.43 = 126,503.41 : x
  2. Step 2: Convert to fraction form
    228,477.95/315,309.43 = 126,503.41/x
  3. Step 3: Cross multiply
    228,477.95x = 315,309.43 × 126,503.41
  4. Step 4: Simplify right side
    228,477.95x = 39,887,717,349.64
  5. Step 5: Solve for x
    x = 39,887,717,349.64/228,477.95
  6. Step 6: Final answer
    x = 174,580.16

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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.