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Finding the Fourth Proportional to 83,070.35, 114,635.61 and 47,259.59

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Solution

The fourth proportional to 83,070.35, 114,635.61 and 47,259.59 is: 65,217.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,070.35 : 114,635.61 = 47,259.59 : x
  2. Step 2: Convert to fraction form
    83,070.35/114,635.61 = 47,259.59/x
  3. Step 3: Cross multiply
    83,070.35x = 114,635.61 × 47,259.59
  4. Step 4: Simplify right side
    83,070.35x = 5,417,631,928.00
  5. Step 5: Solve for x
    x = 5,417,631,928.00/83,070.35
  6. Step 6: Final answer
    x = 65,217.40

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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.