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Finding the Fourth Proportional to 131,406,437.70, 197,109,656.55 and 131,406,437.70

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Solution

The fourth proportional to 131,406,437.70, 197,109,656.55 and 131,406,437.70 is: 197,109,656.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,406,437.70 : 197,109,656.55 = 131,406,437.70 : x
  2. Step 2: Convert to fraction form
    131,406,437.70/197,109,656.55 = 131,406,437.70/x
  3. Step 3: Cross multiply
    131,406,437.70x = 197,109,656.55 × 131,406,437.70
  4. Step 4: Simplify right side
    131,406,437.70x = 25,901,477,803,505,976
  5. Step 5: Solve for x
    x = 25,901,477,803,505,976/131,406,437.70
  6. Step 6: Final answer
    x = 197,109,656.55

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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.