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Finding the Fourth Proportional to 58,124.80, 80,236.64 and 49,218.48

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Solution

The fourth proportional to 58,124.80, 80,236.64 and 49,218.48 is: 67,942.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,124.80 : 80,236.64 = 49,218.48 : x
  2. Step 2: Convert to fraction form
    58,124.80/80,236.64 = 49,218.48/x
  3. Step 3: Cross multiply
    58,124.80x = 80,236.64 × 49,218.48
  4. Step 4: Simplify right side
    58,124.80x = 3,949,125,461.11
  5. Step 5: Solve for x
    x = 3,949,125,461.11/58,124.80
  6. Step 6: Final answer
    x = 67,942.18

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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.