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Finding the Fourth Proportional to 43,692,051.60, 65,553,823.80 and 18,151,390.80

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Solution

The fourth proportional to 43,692,051.60, 65,553,823.80 and 18,151,390.80 is: 27,233,627.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,692,051.60 : 65,553,823.80 = 18,151,390.80 : x
  2. Step 2: Convert to fraction form
    43,692,051.60/65,553,823.80 = 18,151,390.80/x
  3. Step 3: Cross multiply
    43,692,051.60x = 65,553,823.80 × 18,151,390.80
  4. Step 4: Simplify right side
    43,692,051.60x = 1,189,893,074,228,141
  5. Step 5: Solve for x
    x = 1,189,893,074,228,141/43,692,051.60
  6. Step 6: Final answer
    x = 27,233,627.87

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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.