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Finding the Fourth Proportional to 127,040.64, 175,328.88 and 70,462.88

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Solution

The fourth proportional to 127,040.64, 175,328.88 and 70,462.88 is: 97,245.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,040.64 : 175,328.88 = 70,462.88 : x
  2. Step 2: Convert to fraction form
    127,040.64/175,328.88 = 70,462.88/x
  3. Step 3: Cross multiply
    127,040.64x = 175,328.88 × 70,462.88
  4. Step 4: Simplify right side
    127,040.64x = 12,354,177,831.97
  5. Step 5: Solve for x
    x = 12,354,177,831.97/127,040.64
  6. Step 6: Final answer
    x = 97,245.87

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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.