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Finding the Fourth Proportional to 134,697.84, 185,846.56 and 76,553.76

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Solution

The fourth proportional to 134,697.84, 185,846.56 and 76,553.76 is: 105,623.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,697.84 : 185,846.56 = 76,553.76 : x
  2. Step 2: Convert to fraction form
    134,697.84/185,846.56 = 76,553.76/x
  3. Step 3: Cross multiply
    134,697.84x = 185,846.56 × 76,553.76
  4. Step 4: Simplify right side
    134,697.84x = 14,227,252,951.07
  5. Step 5: Solve for x
    x = 14,227,252,951.07/134,697.84
  6. Step 6: Final answer
    x = 105,623.47

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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.