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Finding the Fourth Proportional to 228,212.30, 342,318.45 and 175,068.20

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Solution

The fourth proportional to 228,212.30, 342,318.45 and 175,068.20 is: 262,602.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,212.30 : 342,318.45 = 175,068.20 : x
  2. Step 2: Convert to fraction form
    228,212.30/342,318.45 = 175,068.20/x
  3. Step 3: Cross multiply
    228,212.30x = 342,318.45 × 175,068.20
  4. Step 4: Simplify right side
    228,212.30x = 59,929,074,868.29
  5. Step 5: Solve for x
    x = 59,929,074,868.29/228,212.30
  6. Step 6: Final answer
    x = 262,602.30

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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.