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Finding the Fourth Proportional to 412,871,572.60, 619,307,358.90 and 167,345,830.60

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Solution

The fourth proportional to 412,871,572.60, 619,307,358.90 and 167,345,830.60 is: 251,018,745.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,871,572.60 : 619,307,358.90 = 167,345,830.60 : x
  2. Step 2: Convert to fraction form
    412,871,572.60/619,307,358.90 = 167,345,830.60/x
  3. Step 3: Cross multiply
    412,871,572.60x = 619,307,358.90 × 167,345,830.60
  4. Step 4: Simplify right side
    412,871,572.60x = 103,638,504,371,812,800
  5. Step 5: Solve for x
    x = 103,638,504,371,812,800/412,871,572.60
  6. Step 6: Final answer
    x = 251,018,745.90

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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.