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Finding the Fourth Proportional to 192,698,615.53, 289,001,641.93 and 88,968,156.45

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Solution

The fourth proportional to 192,698,615.53, 289,001,641.93 and 88,968,156.45 is: 133,430,866.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,698,615.53 : 289,001,641.93 = 88,968,156.45 : x
  2. Step 2: Convert to fraction form
    192,698,615.53/289,001,641.93 = 88,968,156.45/x
  3. Step 3: Cross multiply
    192,698,615.53x = 289,001,641.93 × 88,968,156.45
  4. Step 4: Simplify right side
    192,698,615.53x = 25,711,943,294,102,824
  5. Step 5: Solve for x
    x = 25,711,943,294,102,824/192,698,615.53
  6. Step 6: Final answer
    x = 133,430,866.76

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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.