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Finding the Fourth Proportional to 55,438,810.60, 83,158,215.90 and 55,438,810.60

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Solution

The fourth proportional to 55,438,810.60, 83,158,215.90 and 55,438,810.60 is: 83,158,215.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,438,810.60 : 83,158,215.90 = 55,438,810.60 : x
  2. Step 2: Convert to fraction form
    55,438,810.60/83,158,215.90 = 55,438,810.60/x
  3. Step 3: Cross multiply
    55,438,810.60x = 83,158,215.90 × 55,438,810.60
  4. Step 4: Simplify right side
    55,438,810.60x = 4,610,192,581,114,009
  5. Step 5: Solve for x
    x = 4,610,192,581,114,009/55,438,810.60
  6. Step 6: Final answer
    x = 83,158,215.90

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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.