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Finding the Fourth Proportional to 43,722,671.80, 65,584,007.70 and 13,432,041.40

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Solution

The fourth proportional to 43,722,671.80, 65,584,007.70 and 13,432,041.40 is: 20,148,062.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,722,671.80 : 65,584,007.70 = 13,432,041.40 : x
  2. Step 2: Convert to fraction form
    43,722,671.80/65,584,007.70 = 13,432,041.40/x
  3. Step 3: Cross multiply
    43,722,671.80x = 65,584,007.70 × 13,432,041.40
  4. Step 4: Simplify right side
    43,722,671.80x = 880,927,106,604,318.88
  5. Step 5: Solve for x
    x = 880,927,106,604,318.88/43,722,671.80
  6. Step 6: Final answer
    x = 20,148,062.10

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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.