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Finding the Fourth Proportional to 45,247,712.70, 67,871,569.05 and 45,247,712.70

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Solution

The fourth proportional to 45,247,712.70, 67,871,569.05 and 45,247,712.70 is: 67,871,569.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,247,712.70 : 67,871,569.05 = 45,247,712.70 : x
  2. Step 2: Convert to fraction form
    45,247,712.70/67,871,569.05 = 45,247,712.70/x
  3. Step 3: Cross multiply
    45,247,712.70x = 67,871,569.05 × 45,247,712.70
  4. Step 4: Simplify right side
    45,247,712.70x = 3,071,033,256,872,612
  5. Step 5: Solve for x
    x = 3,071,033,256,872,612/45,247,712.70
  6. Step 6: Final answer
    x = 67,871,569.05

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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.