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Finding the Fourth Proportional to 228,460.50, 342,707.22 and 70,668.72

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Solution

The fourth proportional to 228,460.50, 342,707.22 and 70,668.72 is: 106,008.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,460.50 : 342,707.22 = 70,668.72 : x
  2. Step 2: Convert to fraction form
    228,460.50/342,707.22 = 70,668.72/x
  3. Step 3: Cross multiply
    228,460.50x = 342,707.22 × 70,668.72
  4. Step 4: Simplify right side
    228,460.50x = 24,218,680,572.16
  5. Step 5: Solve for x
    x = 24,218,680,572.16/228,460.50
  6. Step 6: Final answer
    x = 106,008.17

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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.