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Finding the Fourth Proportional to 61,695.55, 85,096.56 and 42,582.99

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Solution

The fourth proportional to 61,695.55, 85,096.56 and 42,582.99 is: 58,734.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,695.55 : 85,096.56 = 42,582.99 : x
  2. Step 2: Convert to fraction form
    61,695.55/85,096.56 = 42,582.99/x
  3. Step 3: Cross multiply
    61,695.55x = 85,096.56 × 42,582.99
  4. Step 4: Simplify right side
    61,695.55x = 3,623,666,202.78
  5. Step 5: Solve for x
    x = 3,623,666,202.78/61,695.55
  6. Step 6: Final answer
    x = 58,734.64

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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.