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Finding the Fourth Proportional to 171,646.88, 257,054.60 and 87,184.88

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Solution

The fourth proportional to 171,646.88, 257,054.60 and 87,184.88 is: 130,566.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,646.88 : 257,054.60 = 87,184.88 : x
  2. Step 2: Convert to fraction form
    171,646.88/257,054.60 = 87,184.88/x
  3. Step 3: Cross multiply
    171,646.88x = 257,054.60 × 87,184.88
  4. Step 4: Simplify right side
    171,646.88x = 22,411,274,454.45
  5. Step 5: Solve for x
    x = 22,411,274,454.45/171,646.88
  6. Step 6: Final answer
    x = 130,566.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.