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Finding the Fourth Proportional to 171,477.16, 257,252.46 and 53,145.88

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Solution

The fourth proportional to 171,477.16, 257,252.46 and 53,145.88 is: 79,730.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,477.16 : 257,252.46 = 53,145.88 : x
  2. Step 2: Convert to fraction form
    171,477.16/257,252.46 = 53,145.88/x
  3. Step 3: Cross multiply
    171,477.16x = 257,252.46 × 53,145.88
  4. Step 4: Simplify right side
    171,477.16x = 13,671,908,368.86
  5. Step 5: Solve for x
    x = 13,671,908,368.86/171,477.16
  6. Step 6: Final answer
    x = 79,730.20

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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.