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Finding the Fourth Proportional to 228,444.48, 315,253.80 and 126,477

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Solution

The fourth proportional to 228,444.48, 315,253.80 and 126,477 is: 174,538.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,444.48 : 315,253.80 = 126,477 : x
  2. Step 2: Convert to fraction form
    228,444.48/315,253.80 = 126,477/x
  3. Step 3: Cross multiply
    228,444.48x = 315,253.80 × 126,477
  4. Step 4: Simplify right side
    228,444.48x = 39,872,354,862.60
  5. Step 5: Solve for x
    x = 39,872,354,862.60/228,444.48
  6. Step 6: Final answer
    x = 174,538.49

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.