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Finding the Fourth Proportional to 104,976,147.60, 157,464,221.40 and 28,296,428.40

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Solution

The fourth proportional to 104,976,147.60, 157,464,221.40 and 28,296,428.40 is: 42,444,642.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,976,147.60 : 157,464,221.40 = 28,296,428.40 : x
  2. Step 2: Convert to fraction form
    104,976,147.60/157,464,221.40 = 28,296,428.40/x
  3. Step 3: Cross multiply
    104,976,147.60x = 157,464,221.40 × 28,296,428.40
  4. Step 4: Simplify right side
    104,976,147.60x = 4,455,675,066,406,847.50
  5. Step 5: Solve for x
    x = 4,455,675,066,406,847.50/104,976,147.60
  6. Step 6: Final answer
    x = 42,444,642.60

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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.