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Finding the Fourth Proportional to 99,295.52, 137,030.47 and 53,976.53

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Solution

The fourth proportional to 99,295.52, 137,030.47 and 53,976.53 is: 74,489.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,295.52 : 137,030.47 = 53,976.53 : x
  2. Step 2: Convert to fraction form
    99,295.52/137,030.47 = 53,976.53/x
  3. Step 3: Cross multiply
    99,295.52x = 137,030.47 × 53,976.53
  4. Step 4: Simplify right side
    99,295.52x = 7,396,429,482.50
  5. Step 5: Solve for x
    x = 7,396,429,482.50/99,295.52
  6. Step 6: Final answer
    x = 74,489.06

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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.