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Finding the Fourth Proportional to 228,465.32, 315,271.84 and 126,483.62

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Solution

The fourth proportional to 228,465.32, 315,271.84 and 126,483.62 is: 174,541.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,465.32 : 315,271.84 = 126,483.62 : x
  2. Step 2: Convert to fraction form
    228,465.32/315,271.84 = 126,483.62/x
  3. Step 3: Cross multiply
    228,465.32x = 315,271.84 × 126,483.62
  4. Step 4: Simplify right side
    228,465.32x = 39,876,723,607.26
  5. Step 5: Solve for x
    x = 39,876,723,607.26/228,465.32
  6. Step 6: Final answer
    x = 174,541.69

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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.