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Finding the Fourth Proportional to 127,497.18, 175,943.61 and 70,907.34

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Solution

The fourth proportional to 127,497.18, 175,943.61 and 70,907.34 is: 97,850.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,497.18 : 175,943.61 = 70,907.34 : x
  2. Step 2: Convert to fraction form
    127,497.18/175,943.61 = 70,907.34/x
  3. Step 3: Cross multiply
    127,497.18x = 175,943.61 × 70,907.34
  4. Step 4: Simplify right side
    127,497.18x = 12,475,693,375.10
  5. Step 5: Solve for x
    x = 12,475,693,375.10/127,497.18
  6. Step 6: Final answer
    x = 97,850.74

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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.