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Finding the Fourth Proportional to 127,340.44, 175,728.54 and 70,750.60

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Solution

The fourth proportional to 127,340.44, 175,728.54 and 70,750.60 is: 97,635.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,340.44 : 175,728.54 = 70,750.60 : x
  2. Step 2: Convert to fraction form
    127,340.44/175,728.54 = 70,750.60/x
  3. Step 3: Cross multiply
    127,340.44x = 175,728.54 × 70,750.60
  4. Step 4: Simplify right side
    127,340.44x = 12,432,899,642.12
  5. Step 5: Solve for x
    x = 12,432,899,642.12/127,340.44
  6. Step 6: Final answer
    x = 97,635.12

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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.