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Finding the Fourth Proportional to 40,081,406.40, 60,122,109.60 and 40,081,406.40

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Solution

The fourth proportional to 40,081,406.40, 60,122,109.60 and 40,081,406.40 is: 60,122,109.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,081,406.40 : 60,122,109.60 = 40,081,406.40 : x
  2. Step 2: Convert to fraction form
    40,081,406.40/60,122,109.60 = 40,081,406.40/x
  3. Step 3: Cross multiply
    40,081,406.40x = 60,122,109.60 × 40,081,406.40
  4. Step 4: Simplify right side
    40,081,406.40x = 2,409,778,708,502,941.50
  5. Step 5: Solve for x
    x = 2,409,778,708,502,941.50/40,081,406.40
  6. Step 6: Final answer
    x = 60,122,109.60

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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.