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Finding the Fourth Proportional to 200,557.57, 276,810.47 and 115,663.09

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Solution

The fourth proportional to 200,557.57, 276,810.47 and 115,663.09 is: 159,638.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,557.57 : 276,810.47 = 115,663.09 : x
  2. Step 2: Convert to fraction form
    200,557.57/276,810.47 = 115,663.09/x
  3. Step 3: Cross multiply
    200,557.57x = 276,810.47 × 115,663.09
  4. Step 4: Simplify right side
    200,557.57x = 32,016,754,304.55
  5. Step 5: Solve for x
    x = 32,016,754,304.55/200,557.57
  6. Step 6: Final answer
    x = 159,638.72

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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.