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Finding the Fourth Proportional to 373,249,897.80, 559,874,846.70 and 191,515,446.60

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Solution

The fourth proportional to 373,249,897.80, 559,874,846.70 and 191,515,446.60 is: 287,273,169.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,249,897.80 : 559,874,846.70 = 191,515,446.60 : x
  2. Step 2: Convert to fraction form
    373,249,897.80/559,874,846.70 = 191,515,446.60/x
  3. Step 3: Cross multiply
    373,249,897.80x = 559,874,846.70 × 191,515,446.60
  4. Step 4: Simplify right side
    373,249,897.80x = 107,224,681,305,857,040
  5. Step 5: Solve for x
    x = 107,224,681,305,857,040/373,249,897.80
  6. Step 6: Final answer
    x = 287,273,169.90

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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.