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Finding the Fourth Proportional to 165,893,928.60, 248,840,892.90 and 153,800,693.40

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Solution

The fourth proportional to 165,893,928.60, 248,840,892.90 and 153,800,693.40 is: 230,701,040.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,893,928.60 : 248,840,892.90 = 153,800,693.40 : x
  2. Step 2: Convert to fraction form
    165,893,928.60/248,840,892.90 = 153,800,693.40/x
  3. Step 3: Cross multiply
    165,893,928.60x = 248,840,892.90 × 153,800,693.40
  4. Step 4: Simplify right side
    165,893,928.60x = 38,271,901,874,295,136
  5. Step 5: Solve for x
    x = 38,271,901,874,295,136/165,893,928.60
  6. Step 6: Final answer
    x = 230,701,040.10

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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.