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Finding the Fourth Proportional to 171,259.42, 236,385.52 and 99,653.32

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Solution

The fourth proportional to 171,259.42, 236,385.52 and 99,653.32 is: 137,549.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,259.42 : 236,385.52 = 99,653.32 : x
  2. Step 2: Convert to fraction form
    171,259.42/236,385.52 = 99,653.32/x
  3. Step 3: Cross multiply
    171,259.42x = 236,385.52 × 99,653.32
  4. Step 4: Simplify right side
    171,259.42x = 23,556,601,867.93
  5. Step 5: Solve for x
    x = 23,556,601,867.93/171,259.42
  6. Step 6: Final answer
    x = 137,549.23

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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.