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Finding the Fourth Proportional to 176,313,891.60, 264,470,837.40 and 127,689,008.40

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Solution

The fourth proportional to 176,313,891.60, 264,470,837.40 and 127,689,008.40 is: 191,533,512.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,313,891.60 : 264,470,837.40 = 127,689,008.40 : x
  2. Step 2: Convert to fraction form
    176,313,891.60/264,470,837.40 = 127,689,008.40/x
  3. Step 3: Cross multiply
    176,313,891.60x = 264,470,837.40 × 127,689,008.40
  4. Step 4: Simplify right side
    176,313,891.60x = 33,770,018,978,323,636
  5. Step 5: Solve for x
    x = 33,770,018,978,323,636/176,313,891.60
  6. Step 6: Final answer
    x = 191,533,512.60

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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.