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Finding the Fourth Proportional to 61,959.53, 85,176.36 and 53,313.59

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Solution

The fourth proportional to 61,959.53, 85,176.36 and 53,313.59 is: 73,290.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,959.53 : 85,176.36 = 53,313.59 : x
  2. Step 2: Convert to fraction form
    61,959.53/85,176.36 = 53,313.59/x
  3. Step 3: Cross multiply
    61,959.53x = 85,176.36 × 53,313.59
  4. Step 4: Simplify right side
    61,959.53x = 4,541,057,747.67
  5. Step 5: Solve for x
    x = 4,541,057,747.67/61,959.53
  6. Step 6: Final answer
    x = 73,290.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.