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Finding the Fourth Proportional to 55,490,018.70, 83,235,028.05 and 55,490,018.70

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Solution

The fourth proportional to 55,490,018.70, 83,235,028.05 and 55,490,018.70 is: 83,235,028.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,490,018.70 : 83,235,028.05 = 55,490,018.70 : x
  2. Step 2: Convert to fraction form
    55,490,018.70/83,235,028.05 = 55,490,018.70/x
  3. Step 3: Cross multiply
    55,490,018.70x = 83,235,028.05 × 55,490,018.70
  4. Step 4: Simplify right side
    55,490,018.70x = 4,618,713,262,989,525
  5. Step 5: Solve for x
    x = 4,618,713,262,989,525/55,490,018.70
  6. Step 6: Final answer
    x = 83,235,028.05

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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.