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Finding the Fourth Proportional to 143,620,101.60, 215,430,152.40 and 143,620,101.60

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Solution

The fourth proportional to 143,620,101.60, 215,430,152.40 and 143,620,101.60 is: 215,430,152.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,620,101.60 : 215,430,152.40 = 143,620,101.60 : x
  2. Step 2: Convert to fraction form
    143,620,101.60/215,430,152.40 = 143,620,101.60/x
  3. Step 3: Cross multiply
    143,620,101.60x = 215,430,152.40 × 143,620,101.60
  4. Step 4: Simplify right side
    143,620,101.60x = 30,940,100,375,391,484
  5. Step 5: Solve for x
    x = 30,940,100,375,391,484/143,620,101.60
  6. Step 6: Final answer
    x = 215,430,152.40

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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.