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Finding the Fourth Proportional to 99,950.50, 137,927.93 and 54,628.11

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Solution

The fourth proportional to 99,950.50, 137,927.93 and 54,628.11 is: 75,384.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,950.50 : 137,927.93 = 54,628.11 : x
  2. Step 2: Convert to fraction form
    99,950.50/137,927.93 = 54,628.11/x
  3. Step 3: Cross multiply
    99,950.50x = 137,927.93 × 54,628.11
  4. Step 4: Simplify right side
    99,950.50x = 7,534,742,268.68
  5. Step 5: Solve for x
    x = 7,534,742,268.68/99,950.50
  6. Step 6: Final answer
    x = 75,384.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.