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Finding the Fourth Proportional to 45,817,831.40, 68,726,747.10 and 45,817,831.40

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Solution

The fourth proportional to 45,817,831.40, 68,726,747.10 and 45,817,831.40 is: 68,726,747.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,817,831.40 : 68,726,747.10 = 45,817,831.40 : x
  2. Step 2: Convert to fraction form
    45,817,831.40/68,726,747.10 = 45,817,831.40/x
  3. Step 3: Cross multiply
    45,817,831.40x = 68,726,747.10 × 45,817,831.40
  4. Step 4: Simplify right side
    45,817,831.40x = 3,148,910,511,298,238.50
  5. Step 5: Solve for x
    x = 3,148,910,511,298,238.50/45,817,831.40
  6. Step 6: Final answer
    x = 68,726,747.10

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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.