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Finding the Fourth Proportional to 127,175.18, 175,495.31 and 75,494.49

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Solution

The fourth proportional to 127,175.18, 175,495.31 and 75,494.49 is: 104,178.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,175.18 : 175,495.31 = 75,494.49 : x
  2. Step 2: Convert to fraction form
    127,175.18/175,495.31 = 75,494.49/x
  3. Step 3: Cross multiply
    127,175.18x = 175,495.31 × 75,494.49
  4. Step 4: Simplify right side
    127,175.18x = 13,248,928,666.95
  5. Step 5: Solve for x
    x = 13,248,928,666.95/127,175.18
  6. Step 6: Final answer
    x = 104,178.57

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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.