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Finding the Fourth Proportional to 98,895.91, 148,368.47 and 28,775.22

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Solution

The fourth proportional to 98,895.91, 148,368.47 and 28,775.22 is: 43,169.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,895.91 : 148,368.47 = 28,775.22 : x
  2. Step 2: Convert to fraction form
    98,895.91/148,368.47 = 28,775.22/x
  3. Step 3: Cross multiply
    98,895.91x = 148,368.47 × 28,775.22
  4. Step 4: Simplify right side
    98,895.91x = 4,269,335,365.31
  5. Step 5: Solve for x
    x = 4,269,335,365.31/98,895.91
  6. Step 6: Final answer
    x = 43,169.99

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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.