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Finding the Fourth Proportional to 170,681.02, 256,063.11 and 56,828.62

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Solution

The fourth proportional to 170,681.02, 256,063.11 and 56,828.62 is: 85,256.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,681.02 : 256,063.11 = 56,828.62 : x
  2. Step 2: Convert to fraction form
    170,681.02/256,063.11 = 56,828.62/x
  3. Step 3: Cross multiply
    170,681.02x = 256,063.11 × 56,828.62
  4. Step 4: Simplify right side
    170,681.02x = 14,551,713,174.21
  5. Step 5: Solve for x
    x = 14,551,713,174.21/170,681.02
  6. Step 6: Final answer
    x = 85,256.77

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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.