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Finding the Fourth Proportional to 171,482.13, 257,098.59 and 71,670.83

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Solution

The fourth proportional to 171,482.13, 257,098.59 and 71,670.83 is: 107,454.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,482.13 : 257,098.59 = 71,670.83 : x
  2. Step 2: Convert to fraction form
    171,482.13/257,098.59 = 71,670.83/x
  3. Step 3: Cross multiply
    171,482.13x = 257,098.59 × 71,670.83
  4. Step 4: Simplify right side
    171,482.13x = 18,426,468,051.64
  5. Step 5: Solve for x
    x = 18,426,468,051.64/171,482.13
  6. Step 6: Final answer
    x = 107,454.16

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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.