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Finding the Fourth Proportional to 133,080.97, 183,654.51 and 72,654.16

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Solution

The fourth proportional to 133,080.97, 183,654.51 and 72,654.16 is: 100,264.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,080.97 : 183,654.51 = 72,654.16 : x
  2. Step 2: Convert to fraction form
    133,080.97/183,654.51 = 72,654.16/x
  3. Step 3: Cross multiply
    133,080.97x = 183,654.51 × 72,654.16
  4. Step 4: Simplify right side
    133,080.97x = 13,343,263,967.58
  5. Step 5: Solve for x
    x = 13,343,263,967.58/133,080.97
  6. Step 6: Final answer
    x = 100,264.25

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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.