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Finding the Fourth Proportional to 188,812.92, 260,561.58 and 103,935.42

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Solution

The fourth proportional to 188,812.92, 260,561.58 and 103,935.42 is: 143,430.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,812.92 : 260,561.58 = 103,935.42 : x
  2. Step 2: Convert to fraction form
    188,812.92/260,561.58 = 103,935.42/x
  3. Step 3: Cross multiply
    188,812.92x = 260,561.58 × 103,935.42
  4. Step 4: Simplify right side
    188,812.92x = 27,081,577,253.16
  5. Step 5: Solve for x
    x = 27,081,577,253.16/188,812.92
  6. Step 6: Final answer
    x = 143,430.74

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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.