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Finding the Fourth Proportional to 105,660,234.20, 148,125,881.80 and 105,660,234.20

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Solution

The fourth proportional to 105,660,234.20, 148,125,881.80 and 105,660,234.20 is: 148,125,881.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,660,234.20 : 148,125,881.80 = 105,660,234.20 : x
  2. Step 2: Convert to fraction form
    105,660,234.20/148,125,881.80 = 105,660,234.20/x
  3. Step 3: Cross multiply
    105,660,234.20x = 148,125,881.80 × 105,660,234.20
  4. Step 4: Simplify right side
    105,660,234.20x = 15,651,015,362,069,520
  5. Step 5: Solve for x
    x = 15,651,015,362,069,520/105,660,234.20
  6. Step 6: Final answer
    x = 148,125,881.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.