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Finding the Fourth Proportional to 127,398.92, 175,812.66 and 70,040.63

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Solution

The fourth proportional to 127,398.92, 175,812.66 and 70,040.63 is: 96,657.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,398.92 : 175,812.66 = 70,040.63 : x
  2. Step 2: Convert to fraction form
    127,398.92/175,812.66 = 70,040.63/x
  3. Step 3: Cross multiply
    127,398.92x = 175,812.66 × 70,040.63
  4. Step 4: Simplify right side
    127,398.92x = 12,314,029,907.91
  5. Step 5: Solve for x
    x = 12,314,029,907.91/127,398.92
  6. Step 6: Final answer
    x = 96,657.26

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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.