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Finding the Fourth Proportional to 189,468.48, 261,468.66 and 104,585.58

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Solution

The fourth proportional to 189,468.48, 261,468.66 and 104,585.58 is: 144,329.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,468.48 : 261,468.66 = 104,585.58 : x
  2. Step 2: Convert to fraction form
    189,468.48/261,468.66 = 104,585.58/x
  3. Step 3: Cross multiply
    189,468.48x = 261,468.66 × 104,585.58
  4. Step 4: Simplify right side
    189,468.48x = 27,345,851,457.92
  5. Step 5: Solve for x
    x = 27,345,851,457.92/189,468.48
  6. Step 6: Final answer
    x = 144,329.29

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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.