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Finding the Fourth Proportional to 71,349.39, 98,372.61 and 45,810.63

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Solution

The fourth proportional to 71,349.39, 98,372.61 and 45,810.63 is: 63,161.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,349.39 : 98,372.61 = 45,810.63 : x
  2. Step 2: Convert to fraction form
    71,349.39/98,372.61 = 45,810.63/x
  3. Step 3: Cross multiply
    71,349.39x = 98,372.61 × 45,810.63
  4. Step 4: Simplify right side
    71,349.39x = 4,506,511,238.84
  5. Step 5: Solve for x
    x = 4,506,511,238.84/71,349.39
  6. Step 6: Final answer
    x = 63,161.17

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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.