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Finding the Fourth Proportional to 56,165,985.70, 84,248,978.55 and 37,018,363.30

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Solution

The fourth proportional to 56,165,985.70, 84,248,978.55 and 37,018,363.30 is: 55,527,544.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,165,985.70 : 84,248,978.55 = 37,018,363.30 : x
  2. Step 2: Convert to fraction form
    56,165,985.70/84,248,978.55 = 37,018,363.30/x
  3. Step 3: Cross multiply
    56,165,985.70x = 84,248,978.55 × 37,018,363.30
  4. Step 4: Simplify right side
    56,165,985.70x = 3,118,759,295,617,807
  5. Step 5: Solve for x
    x = 3,118,759,295,617,807/56,165,985.70
  6. Step 6: Final answer
    x = 55,527,544.95

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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.