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Finding the Fourth Proportional to 139,803,122.88, 209,704,502.88 and 37,567,162.80

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Solution

The fourth proportional to 139,803,122.88, 209,704,502.88 and 37,567,162.80 is: 56,350,695.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,803,122.88 : 209,704,502.88 = 37,567,162.80 : x
  2. Step 2: Convert to fraction form
    139,803,122.88/209,704,502.88 = 37,567,162.80/x
  3. Step 3: Cross multiply
    139,803,122.88x = 209,704,502.88 × 37,567,162.80
  4. Step 4: Simplify right side
    139,803,122.88x = 7,878,003,199,586,028
  5. Step 5: Solve for x
    x = 7,878,003,199,586,028/139,803,122.88
  6. Step 6: Final answer
    x = 56,350,695.44

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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.