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Finding the Fourth Proportional to 71,359.60, 98,461.08 and 43,064.80

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Solution

The fourth proportional to 71,359.60, 98,461.08 and 43,064.80 is: 59,420.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,359.60 : 98,461.08 = 43,064.80 : x
  2. Step 2: Convert to fraction form
    71,359.60/98,461.08 = 43,064.80/x
  3. Step 3: Cross multiply
    71,359.60x = 98,461.08 × 43,064.80
  4. Step 4: Simplify right side
    71,359.60x = 4,240,206,717.98
  5. Step 5: Solve for x
    x = 4,240,206,717.98/71,359.60
  6. Step 6: Final answer
    x = 59,420.27

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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.