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Finding the Fourth Proportional to 127,442.53, 175,873.55 and 70,078.22

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Solution

The fourth proportional to 127,442.53, 175,873.55 and 70,078.22 is: 96,709.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,442.53 : 175,873.55 = 70,078.22 : x
  2. Step 2: Convert to fraction form
    127,442.53/175,873.55 = 70,078.22/x
  3. Step 3: Cross multiply
    127,442.53x = 175,873.55 × 70,078.22
  4. Step 4: Simplify right side
    127,442.53x = 12,324,904,099.32
  5. Step 5: Solve for x
    x = 12,324,904,099.32/127,442.53
  6. Step 6: Final answer
    x = 96,709.51

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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.