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Finding the Fourth Proportional to 91,794,452.80, 137,544,712.80 and 48,607,326.40

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Solution

The fourth proportional to 91,794,452.80, 137,544,712.80 and 48,607,326.40 is: 72,833,167.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,794,452.80 : 137,544,712.80 = 48,607,326.40 : x
  2. Step 2: Convert to fraction form
    91,794,452.80/137,544,712.80 = 48,607,326.40/x
  3. Step 3: Cross multiply
    91,794,452.80x = 137,544,712.80 × 48,607,326.40
  4. Step 4: Simplify right side
    91,794,452.80x = 6,685,680,749,663,858
  5. Step 5: Solve for x
    x = 6,685,680,749,663,858/91,794,452.80
  6. Step 6: Final answer
    x = 72,833,167.43

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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.