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Finding the Fourth Proportional to 228,648.40, 343,318.20 and 176,117.20

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Solution

The fourth proportional to 228,648.40, 343,318.20 and 176,117.20 is: 264,442.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,648.40 : 343,318.20 = 176,117.20 : x
  2. Step 2: Convert to fraction form
    228,648.40/343,318.20 = 176,117.20/x
  3. Step 3: Cross multiply
    228,648.40x = 343,318.20 × 176,117.20
  4. Step 4: Simplify right side
    228,648.40x = 60,464,240,093.04
  5. Step 5: Solve for x
    x = 60,464,240,093.04/228,648.40
  6. Step 6: Final answer
    x = 264,442.00

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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.