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Finding the Fourth Proportional to 55,951,651.80, 83,927,477.70 and 15,562,135.80

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Solution

The fourth proportional to 55,951,651.80, 83,927,477.70 and 15,562,135.80 is: 23,343,203.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,951,651.80 : 83,927,477.70 = 15,562,135.80 : x
  2. Step 2: Convert to fraction form
    55,951,651.80/83,927,477.70 = 15,562,135.80/x
  3. Step 3: Cross multiply
    55,951,651.80x = 83,927,477.70 × 15,562,135.80
  4. Step 4: Simplify right side
    55,951,651.80x = 1,306,090,805,318,871.75
  5. Step 5: Solve for x
    x = 1,306,090,805,318,871.75/55,951,651.80
  6. Step 6: Final answer
    x = 23,343,203.70

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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.