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Finding the Fourth Proportional to 75,557.91, 104,216.85 and 65,468.43

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Solution

The fourth proportional to 75,557.91, 104,216.85 and 65,468.43 is: 90,300.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,557.91 : 104,216.85 = 65,468.43 : x
  2. Step 2: Convert to fraction form
    75,557.91/104,216.85 = 65,468.43/x
  3. Step 3: Cross multiply
    75,557.91x = 104,216.85 × 65,468.43
  4. Step 4: Simplify right side
    75,557.91x = 6,822,913,549.05
  5. Step 5: Solve for x
    x = 6,822,913,549.05/75,557.91
  6. Step 6: Final answer
    x = 90,300.45

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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.