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Finding the Fourth Proportional to 248,978,831.60, 373,468,247.40 and 158,503,516.40

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Solution

The fourth proportional to 248,978,831.60, 373,468,247.40 and 158,503,516.40 is: 237,755,274.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,978,831.60 : 373,468,247.40 = 158,503,516.40 : x
  2. Step 2: Convert to fraction form
    248,978,831.60/373,468,247.40 = 158,503,516.40/x
  3. Step 3: Cross multiply
    248,978,831.60x = 373,468,247.40 × 158,503,516.40
  4. Step 4: Simplify right side
    248,978,831.60x = 59,196,030,476,645,152
  5. Step 5: Solve for x
    x = 59,196,030,476,645,152/248,978,831.60
  6. Step 6: Final answer
    x = 237,755,274.60

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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.