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Finding the Fourth Proportional to 223,128,978.40, 334,693,467.60 and 154,254,224.80

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Solution

The fourth proportional to 223,128,978.40, 334,693,467.60 and 154,254,224.80 is: 231,381,337.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,128,978.40 : 334,693,467.60 = 154,254,224.80 : x
  2. Step 2: Convert to fraction form
    223,128,978.40/334,693,467.60 = 154,254,224.80/x
  3. Step 3: Cross multiply
    223,128,978.40x = 334,693,467.60 × 154,254,224.80
  4. Step 4: Simplify right side
    223,128,978.40x = 51,627,881,390,261,928
  5. Step 5: Solve for x
    x = 51,627,881,390,261,928/223,128,978.40
  6. Step 6: Final answer
    x = 231,381,337.20

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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.