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Finding the Fourth Proportional to 245,065,951.80, 367,598,927.70 and 91,692,079.20

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Solution

The fourth proportional to 245,065,951.80, 367,598,927.70 and 91,692,079.20 is: 137,538,118.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,065,951.80 : 367,598,927.70 = 91,692,079.20 : x
  2. Step 2: Convert to fraction form
    245,065,951.80/367,598,927.70 = 91,692,079.20/x
  3. Step 3: Cross multiply
    245,065,951.80x = 367,598,927.70 × 91,692,079.20
  4. Step 4: Simplify right side
    245,065,951.80x = 33,705,909,992,503,472
  5. Step 5: Solve for x
    x = 33,705,909,992,503,472/245,065,951.80
  6. Step 6: Final answer
    x = 137,538,118.80

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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.