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Finding the Fourth Proportional to 101,951,998.80, 152,828,465.40 and 91,202,456.40

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Solution

The fourth proportional to 101,951,998.80, 152,828,465.40 and 91,202,456.40 is: 136,714,646.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,951,998.80 : 152,828,465.40 = 91,202,456.40 : x
  2. Step 2: Convert to fraction form
    101,951,998.80/152,828,465.40 = 91,202,456.40/x
  3. Step 3: Cross multiply
    101,951,998.80x = 152,828,465.40 × 91,202,456.40
  4. Step 4: Simplify right side
    101,951,998.80x = 13,938,331,452,322,410
  5. Step 5: Solve for x
    x = 13,938,331,452,322,410/101,951,998.80
  6. Step 6: Final answer
    x = 136,714,646.27

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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.