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Finding the Fourth Proportional to 96,598.81, 133,261 and 68,320.09

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Solution

The fourth proportional to 96,598.81, 133,261 and 68,320.09 is: 94,249.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,598.81 : 133,261 = 68,320.09 : x
  2. Step 2: Convert to fraction form
    96,598.81/133,261 = 68,320.09/x
  3. Step 3: Cross multiply
    96,598.81x = 133,261 × 68,320.09
  4. Step 4: Simplify right side
    96,598.81x = 9,104,403,513.49
  5. Step 5: Solve for x
    x = 9,104,403,513.49/96,598.81
  6. Step 6: Final answer
    x = 94,249.64

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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.