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Finding the Fourth Proportional to 58,081.50, 80,140.11 and 34,199.46

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Solution

The fourth proportional to 58,081.50, 80,140.11 and 34,199.46 is: 47,187.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,081.50 : 80,140.11 = 34,199.46 : x
  2. Step 2: Convert to fraction form
    58,081.50/80,140.11 = 34,199.46/x
  3. Step 3: Cross multiply
    58,081.50x = 80,140.11 × 34,199.46
  4. Step 4: Simplify right side
    58,081.50x = 2,740,748,486.34
  5. Step 5: Solve for x
    x = 2,740,748,486.34/58,081.50
  6. Step 6: Final answer
    x = 47,187.98

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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.