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Finding the Fourth Proportional to 189,567,428.80, 265,752,718.40 and 189,567,428.80

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Solution

The fourth proportional to 189,567,428.80, 265,752,718.40 and 189,567,428.80 is: 265,752,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,567,428.80 : 265,752,718.40 = 189,567,428.80 : x
  2. Step 2: Convert to fraction form
    189,567,428.80/265,752,718.40 = 189,567,428.80/x
  3. Step 3: Cross multiply
    189,567,428.80x = 265,752,718.40 × 189,567,428.80
  4. Step 4: Simplify right side
    189,567,428.80x = 50,378,059,523,698,456
  5. Step 5: Solve for x
    x = 50,378,059,523,698,456/189,567,428.80
  6. Step 6: Final answer
    x = 265,752,718.40

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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.