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Finding the Fourth Proportional to 75,886.65, 104,732.44 and 63,117.30

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Solution

The fourth proportional to 75,886.65, 104,732.44 and 63,117.30 is: 87,109.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,886.65 : 104,732.44 = 63,117.30 : x
  2. Step 2: Convert to fraction form
    75,886.65/104,732.44 = 63,117.30/x
  3. Step 3: Cross multiply
    75,886.65x = 104,732.44 × 63,117.30
  4. Step 4: Simplify right side
    75,886.65x = 6,610,429,130.64
  5. Step 5: Solve for x
    x = 6,610,429,130.64/75,886.65
  6. Step 6: Final answer
    x = 87,109.25

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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.