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Finding the Fourth Proportional to 106,730.63, 147,279.43 and 58,983.86

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Solution

The fourth proportional to 106,730.63, 147,279.43 and 58,983.86 is: 81,392.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,730.63 : 147,279.43 = 58,983.86 : x
  2. Step 2: Convert to fraction form
    106,730.63/147,279.43 = 58,983.86/x
  3. Step 3: Cross multiply
    106,730.63x = 147,279.43 × 58,983.86
  4. Step 4: Simplify right side
    106,730.63x = 8,687,109,280.00
  5. Step 5: Solve for x
    x = 8,687,109,280.00/106,730.63
  6. Step 6: Final answer
    x = 81,392.84

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1.5x scale

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.