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Finding the Fourth Proportional to 72,733,207.80, 109,099,811.70 and 72,733,207.80

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Solution

The fourth proportional to 72,733,207.80, 109,099,811.70 and 72,733,207.80 is: 109,099,811.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,733,207.80 : 109,099,811.70 = 72,733,207.80 : x
  2. Step 2: Convert to fraction form
    72,733,207.80/109,099,811.70 = 72,733,207.80/x
  3. Step 3: Cross multiply
    72,733,207.80x = 109,099,811.70 × 72,733,207.80
  4. Step 4: Simplify right side
    72,733,207.80x = 7,935,179,275,316,971
  5. Step 5: Solve for x
    x = 7,935,179,275,316,971/72,733,207.80
  6. Step 6: Final answer
    x = 109,099,811.70

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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.