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Finding the Fourth Proportional to 127,494.84, 175,949.10 and 70,905

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Solution

The fourth proportional to 127,494.84, 175,949.10 and 70,905 is: 97,852.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,494.84 : 175,949.10 = 70,905 : x
  2. Step 2: Convert to fraction form
    127,494.84/175,949.10 = 70,905/x
  3. Step 3: Cross multiply
    127,494.84x = 175,949.10 × 70,905
  4. Step 4: Simplify right side
    127,494.84x = 12,475,670,935.50
  5. Step 5: Solve for x
    x = 12,475,670,935.50/127,494.84
  6. Step 6: Final answer
    x = 97,852.36

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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.