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Finding the Fourth Proportional to 99,295.65, 137,027.75 and 53,973.63

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Solution

The fourth proportional to 99,295.65, 137,027.75 and 53,973.63 is: 74,483.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,295.65 : 137,027.75 = 53,973.63 : x
  2. Step 2: Convert to fraction form
    99,295.65/137,027.75 = 53,973.63/x
  3. Step 3: Cross multiply
    99,295.65x = 137,027.75 × 53,973.63
  4. Step 4: Simplify right side
    99,295.65x = 7,395,884,808.36
  5. Step 5: Solve for x
    x = 7,395,884,808.36/99,295.65
  6. Step 6: Final answer
    x = 74,483.47

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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.