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Finding the Fourth Proportional to 104,979.30, 157,468.95 and 65,613.30

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Solution

The fourth proportional to 104,979.30, 157,468.95 and 65,613.30 is: 98,419.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,979.30 : 157,468.95 = 65,613.30 : x
  2. Step 2: Convert to fraction form
    104,979.30/157,468.95 = 65,613.30/x
  3. Step 3: Cross multiply
    104,979.30x = 157,468.95 × 65,613.30
  4. Step 4: Simplify right side
    104,979.30x = 10,332,057,457.04
  5. Step 5: Solve for x
    x = 10,332,057,457.04/104,979.30
  6. Step 6: Final answer
    x = 98,419.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.