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Finding the Fourth Proportional to 169,275.08, 253,912.97 and 42,915.28

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Solution

The fourth proportional to 169,275.08, 253,912.97 and 42,915.28 is: 64,373.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,275.08 : 253,912.97 = 42,915.28 : x
  2. Step 2: Convert to fraction form
    169,275.08/253,912.97 = 42,915.28/x
  3. Step 3: Cross multiply
    169,275.08x = 253,912.97 × 42,915.28
  4. Step 4: Simplify right side
    169,275.08x = 10,896,746,203.18
  5. Step 5: Solve for x
    x = 10,896,746,203.18/169,275.08
  6. Step 6: Final answer
    x = 64,373.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.