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Finding the Fourth Proportional to 121,247,474.40, 181,871,211.60 and 121,247,474.40

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Solution

The fourth proportional to 121,247,474.40, 181,871,211.60 and 121,247,474.40 is: 181,871,211.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,247,474.40 : 181,871,211.60 = 121,247,474.40 : x
  2. Step 2: Convert to fraction form
    121,247,474.40/181,871,211.60 = 121,247,474.40/x
  3. Step 3: Cross multiply
    121,247,474.40x = 181,871,211.60 × 121,247,474.40
  4. Step 4: Simplify right side
    121,247,474.40x = 22,051,425,072,567,984
  5. Step 5: Solve for x
    x = 22,051,425,072,567,984/121,247,474.40
  6. Step 6: Final answer
    x = 181,871,211.60

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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.