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Finding the Fourth Proportional to 98,185, 147,187.51 and 38,253.91

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Solution

The fourth proportional to 98,185, 147,187.51 and 38,253.91 is: 57,345.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,185 : 147,187.51 = 38,253.91 : x
  2. Step 2: Convert to fraction form
    98,185/147,187.51 = 38,253.91/x
  3. Step 3: Cross multiply
    98,185x = 147,187.51 × 38,253.91
  4. Step 4: Simplify right side
    98,185x = 5,630,497,760.66
  5. Step 5: Solve for x
    x = 5,630,497,760.66/98,185
  6. Step 6: Final answer
    x = 57,345.80

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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.