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Finding the Fourth Proportional to 63,726.51, 87,946.88 and 42,179.14

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Solution

The fourth proportional to 63,726.51, 87,946.88 and 42,179.14 is: 58,210.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,726.51 : 87,946.88 = 42,179.14 : x
  2. Step 2: Convert to fraction form
    63,726.51/87,946.88 = 42,179.14/x
  3. Step 3: Cross multiply
    63,726.51x = 87,946.88 × 42,179.14
  4. Step 4: Simplify right side
    63,726.51x = 3,709,523,649.66
  5. Step 5: Solve for x
    x = 3,709,523,649.66/63,726.51
  6. Step 6: Final answer
    x = 58,210.05

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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.