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Finding the Fourth Proportional to 112,888, 169,310.30 and 56,713.06

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Solution

The fourth proportional to 112,888, 169,310.30 and 56,713.06 is: 85,058.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,888 : 169,310.30 = 56,713.06 : x
  2. Step 2: Convert to fraction form
    112,888/169,310.30 = 56,713.06/x
  3. Step 3: Cross multiply
    112,888x = 169,310.30 × 56,713.06
  4. Step 4: Simplify right side
    112,888x = 9,602,105,202.52
  5. Step 5: Solve for x
    x = 9,602,105,202.52/112,888
  6. Step 6: Final answer
    x = 85,058.69

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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.