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Finding the Fourth Proportional to 228,495.13, 315,323.49 and 127,893.13

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Solution

The fourth proportional to 228,495.13, 315,323.49 and 127,893.13 is: 176,492.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,495.13 : 315,323.49 = 127,893.13 : x
  2. Step 2: Convert to fraction form
    228,495.13/315,323.49 = 127,893.13/x
  3. Step 3: Cross multiply
    228,495.13x = 315,323.49 × 127,893.13
  4. Step 4: Simplify right side
    228,495.13x = 40,327,708,098.62
  5. Step 5: Solve for x
    x = 40,327,708,098.62/228,495.13
  6. Step 6: Final answer
    x = 176,492.64

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1.5x scale

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.