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Finding the Fourth Proportional to 223,391.10, 312,047.70 and 223,391.10

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Solution

The fourth proportional to 223,391.10, 312,047.70 and 223,391.10 is: 312,047.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,391.10 : 312,047.70 = 223,391.10 : x
  2. Step 2: Convert to fraction form
    223,391.10/312,047.70 = 223,391.10/x
  3. Step 3: Cross multiply
    223,391.10x = 312,047.70 × 223,391.10
  4. Step 4: Simplify right side
    223,391.10x = 69,708,678,955.47
  5. Step 5: Solve for x
    x = 69,708,678,955.47/223,391.10
  6. Step 6: Final answer
    x = 312,047.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.