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Finding the Fourth Proportional to 189,436.48, 261,424.48 and 104,553.52

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Solution

The fourth proportional to 189,436.48, 261,424.48 and 104,553.52 is: 144,285.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,436.48 : 261,424.48 = 104,553.52 : x
  2. Step 2: Convert to fraction form
    189,436.48/261,424.48 = 104,553.52/x
  3. Step 3: Cross multiply
    189,436.48x = 261,424.48 × 104,553.52
  4. Step 4: Simplify right side
    189,436.48x = 27,332,849,598.17
  5. Step 5: Solve for x
    x = 27,332,849,598.17/189,436.48
  6. Step 6: Final answer
    x = 144,285.04

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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.