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Finding the Fourth Proportional to 106,645.59, 147,104.19 and 63,594.90

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Solution

The fourth proportional to 106,645.59, 147,104.19 and 63,594.90 is: 87,721.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,645.59 : 147,104.19 = 63,594.90 : x
  2. Step 2: Convert to fraction form
    106,645.59/147,104.19 = 63,594.90/x
  3. Step 3: Cross multiply
    106,645.59x = 147,104.19 × 63,594.90
  4. Step 4: Simplify right side
    106,645.59x = 9,355,076,252.63
  5. Step 5: Solve for x
    x = 9,355,076,252.63/106,645.59
  6. Step 6: Final answer
    x = 87,721.17

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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.