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Finding the Fourth Proportional to 124,780,698.30, 187,171,047.45 and 124,780,698.30

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Solution

The fourth proportional to 124,780,698.30, 187,171,047.45 and 124,780,698.30 is: 187,171,047.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,780,698.30 : 187,171,047.45 = 124,780,698.30 : x
  2. Step 2: Convert to fraction form
    124,780,698.30/187,171,047.45 = 124,780,698.30/x
  3. Step 3: Cross multiply
    124,780,698.30x = 187,171,047.45 × 124,780,698.30
  4. Step 4: Simplify right side
    124,780,698.30x = 23,355,334,002,353,432
  5. Step 5: Solve for x
    x = 23,355,334,002,353,432/124,780,698.30
  6. Step 6: Final answer
    x = 187,171,047.45

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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.