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Finding the Fourth Proportional to 139,642,707.60, 209,558,539.80 and 62,926,246.80

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Solution

The fourth proportional to 139,642,707.60, 209,558,539.80 and 62,926,246.80 is: 94,431,944.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,642,707.60 : 209,558,539.80 = 62,926,246.80 : x
  2. Step 2: Convert to fraction form
    139,642,707.60/209,558,539.80 = 62,926,246.80/x
  3. Step 3: Cross multiply
    139,642,707.60x = 209,558,539.80 × 62,926,246.80
  4. Step 4: Simplify right side
    139,642,707.60x = 13,186,732,394,502,422
  5. Step 5: Solve for x
    x = 13,186,732,394,502,422/139,642,707.60
  6. Step 6: Final answer
    x = 94,431,944.36

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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.