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Finding the Fourth Proportional to 43,671,318.90, 65,506,978.35 and 33,593,622.90

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Solution

The fourth proportional to 43,671,318.90, 65,506,978.35 and 33,593,622.90 is: 50,390,434.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,671,318.90 : 65,506,978.35 = 33,593,622.90 : x
  2. Step 2: Convert to fraction form
    43,671,318.90/65,506,978.35 = 33,593,622.90/x
  3. Step 3: Cross multiply
    43,671,318.90x = 65,506,978.35 × 33,593,622.90
  4. Step 4: Simplify right side
    43,671,318.90x = 2,200,616,728,008,364.25
  5. Step 5: Solve for x
    x = 2,200,616,728,008,364.25/43,671,318.90
  6. Step 6: Final answer
    x = 50,390,434.35

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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.