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Finding the Fourth Proportional to 193,426,266.40, 289,873,978.80 and 157,594,458.40

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Solution

The fourth proportional to 193,426,266.40, 289,873,978.80 and 157,594,458.40 is: 236,175,435.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,426,266.40 : 289,873,978.80 = 157,594,458.40 : x
  2. Step 2: Convert to fraction form
    193,426,266.40/289,873,978.80 = 157,594,458.40/x
  3. Step 3: Cross multiply
    193,426,266.40x = 289,873,978.80 × 157,594,458.40
  4. Step 4: Simplify right side
    193,426,266.40x = 45,682,532,693,239,088
  5. Step 5: Solve for x
    x = 45,682,532,693,239,088/193,426,266.40
  6. Step 6: Final answer
    x = 236,175,435.44

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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.