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Finding the Fourth Proportional to 127,912.52, 176,516.76 and 70,557.08

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Solution

The fourth proportional to 127,912.52, 176,516.76 and 70,557.08 is: 97,367.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,912.52 : 176,516.76 = 70,557.08 : x
  2. Step 2: Convert to fraction form
    127,912.52/176,516.76 = 70,557.08/x
  3. Step 3: Cross multiply
    127,912.52x = 176,516.76 × 70,557.08
  4. Step 4: Simplify right side
    127,912.52x = 12,454,507,156.66
  5. Step 5: Solve for x
    x = 12,454,507,156.66/127,912.52
  6. Step 6: Final answer
    x = 97,367.38

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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.