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Finding the Fourth Proportional to 143,775,618.40, 215,663,427.60 and 143,775,618.40

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Solution

The fourth proportional to 143,775,618.40, 215,663,427.60 and 143,775,618.40 is: 215,663,427.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,775,618.40 : 215,663,427.60 = 143,775,618.40 : x
  2. Step 2: Convert to fraction form
    143,775,618.40/215,663,427.60 = 143,775,618.40/x
  3. Step 3: Cross multiply
    143,775,618.40x = 215,663,427.60 × 143,775,618.40
  4. Step 4: Simplify right side
    143,775,618.40x = 31,007,142,669,453,628
  5. Step 5: Solve for x
    x = 31,007,142,669,453,628/143,775,618.40
  6. Step 6: Final answer
    x = 215,663,427.60

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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.