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Finding the Fourth Proportional to 218,519,339.40, 327,779,009.10 and 218,519,339.40

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Solution

The fourth proportional to 218,519,339.40, 327,779,009.10 and 218,519,339.40 is: 327,779,009.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,519,339.40 : 327,779,009.10 = 218,519,339.40 : x
  2. Step 2: Convert to fraction form
    218,519,339.40/327,779,009.10 = 218,519,339.40/x
  3. Step 3: Cross multiply
    218,519,339.40x = 327,779,009.10 × 218,519,339.40
  4. Step 4: Simplify right side
    218,519,339.40x = 71,626,052,537,718,592
  5. Step 5: Solve for x
    x = 71,626,052,537,718,592/218,519,339.40
  6. Step 6: Final answer
    x = 327,779,009.10

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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.