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Finding the Fourth Proportional to 153,213.16, 211,439.22 and 92,795.08

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Solution

The fourth proportional to 153,213.16, 211,439.22 and 92,795.08 is: 128,060.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,213.16 : 211,439.22 = 92,795.08 : x
  2. Step 2: Convert to fraction form
    153,213.16/211,439.22 = 92,795.08/x
  3. Step 3: Cross multiply
    153,213.16x = 211,439.22 × 92,795.08
  4. Step 4: Simplify right side
    153,213.16x = 19,620,519,335.04
  5. Step 5: Solve for x
    x = 19,620,519,335.04/153,213.16
  6. Step 6: Final answer
    x = 128,060.27

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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.