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Finding the Fourth Proportional to 135,160.93, 186,512.26 and 74,732.32

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Solution

The fourth proportional to 135,160.93, 186,512.26 and 74,732.32 is: 103,125.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,160.93 : 186,512.26 = 74,732.32 : x
  2. Step 2: Convert to fraction form
    135,160.93/186,512.26 = 74,732.32/x
  3. Step 3: Cross multiply
    135,160.93x = 186,512.26 × 74,732.32
  4. Step 4: Simplify right side
    135,160.93x = 13,938,492,592.02
  5. Step 5: Solve for x
    x = 13,938,492,592.02/135,160.93
  6. Step 6: Final answer
    x = 103,125.16

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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.