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Finding the Fourth Proportional to 189,060, 260,908.29 and 104,182.53

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Solution

The fourth proportional to 189,060, 260,908.29 and 104,182.53 is: 143,774.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,060 : 260,908.29 = 104,182.53 : x
  2. Step 2: Convert to fraction form
    189,060/260,908.29 = 104,182.53/x
  3. Step 3: Cross multiply
    189,060x = 260,908.29 × 104,182.53
  4. Step 4: Simplify right side
    189,060x = 27,182,085,750.17
  5. Step 5: Solve for x
    x = 27,182,085,750.17/189,060
  6. Step 6: Final answer
    x = 143,774.92

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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.