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Finding the Fourth Proportional to 154,925.97, 213,743.00 and 101,242.10

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Solution

The fourth proportional to 154,925.97, 213,743.00 and 101,242.10 is: 139,678.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,925.97 : 213,743.00 = 101,242.10 : x
  2. Step 2: Convert to fraction form
    154,925.97/213,743.00 = 101,242.10/x
  3. Step 3: Cross multiply
    154,925.97x = 213,743.00 × 101,242.10
  4. Step 4: Simplify right side
    154,925.97x = 21,639,790,967.76
  5. Step 5: Solve for x
    x = 21,639,790,967.76/154,925.97
  6. Step 6: Final answer
    x = 139,678.27

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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.