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Finding the Fourth Proportional to 127,491.84, 175,944.96 and 70,902

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Solution

The fourth proportional to 127,491.84, 175,944.96 and 70,902 is: 97,848.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,491.84 : 175,944.96 = 70,902 : x
  2. Step 2: Convert to fraction form
    127,491.84/175,944.96 = 70,902/x
  3. Step 3: Cross multiply
    127,491.84x = 175,944.96 × 70,902
  4. Step 4: Simplify right side
    127,491.84x = 12,474,849,553.92
  5. Step 5: Solve for x
    x = 12,474,849,553.92/127,491.84
  6. Step 6: Final answer
    x = 97,848.22

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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.