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Finding the Fourth Proportional to 127,192.66, 175,526.52 and 79,473.66

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Solution

The fourth proportional to 127,192.66, 175,526.52 and 79,473.66 is: 109,674.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,192.66 : 175,526.52 = 79,473.66 : x
  2. Step 2: Convert to fraction form
    127,192.66/175,526.52 = 79,473.66/x
  3. Step 3: Cross multiply
    127,192.66x = 175,526.52 × 79,473.66
  4. Step 4: Simplify right side
    127,192.66x = 13,949,734,971.46
  5. Step 5: Solve for x
    x = 13,949,734,971.46/127,192.66
  6. Step 6: Final answer
    x = 109,674.06

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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.