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Finding the Fourth Proportional to 113,670,492.80, 170,505,739.20 and 102,191,367.20

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Solution

The fourth proportional to 113,670,492.80, 170,505,739.20 and 102,191,367.20 is: 153,287,050.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,670,492.80 : 170,505,739.20 = 102,191,367.20 : x
  2. Step 2: Convert to fraction form
    113,670,492.80/170,505,739.20 = 102,191,367.20/x
  3. Step 3: Cross multiply
    113,670,492.80x = 170,505,739.20 × 102,191,367.20
  4. Step 4: Simplify right side
    113,670,492.80x = 17,424,214,604,294,634
  5. Step 5: Solve for x
    x = 17,424,214,604,294,634/113,670,492.80
  6. Step 6: Final answer
    x = 153,287,050.80

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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.