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Finding the Fourth Proportional to 73,507,807.80, 110,261,711.70 and 56,289,119.40

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Solution

The fourth proportional to 73,507,807.80, 110,261,711.70 and 56,289,119.40 is: 84,433,679.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,507,807.80 : 110,261,711.70 = 56,289,119.40 : x
  2. Step 2: Convert to fraction form
    73,507,807.80/110,261,711.70 = 56,289,119.40/x
  3. Step 3: Cross multiply
    73,507,807.80x = 110,261,711.70 × 56,289,119.40
  4. Step 4: Simplify right side
    73,507,807.80x = 6,206,534,655,129,677
  5. Step 5: Solve for x
    x = 6,206,534,655,129,677/73,507,807.80
  6. Step 6: Final answer
    x = 84,433,679.10

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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.