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Finding the Fourth Proportional to 83,260.77, 114,913.41 and 61,892.40

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Solution

The fourth proportional to 83,260.77, 114,913.41 and 61,892.40 is: 85,421.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,260.77 : 114,913.41 = 61,892.40 : x
  2. Step 2: Convert to fraction form
    83,260.77/114,913.41 = 61,892.40/x
  3. Step 3: Cross multiply
    83,260.77x = 114,913.41 × 61,892.40
  4. Step 4: Simplify right side
    83,260.77x = 7,112,266,737.08
  5. Step 5: Solve for x
    x = 7,112,266,737.08/83,260.77
  6. Step 6: Final answer
    x = 85,421.58

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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.