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Finding the Fourth Proportional to 124,598.44, 171,939.86 and 70,878.43

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Solution

The fourth proportional to 124,598.44, 171,939.86 and 70,878.43 is: 97,808.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,598.44 : 171,939.86 = 70,878.43 : x
  2. Step 2: Convert to fraction form
    124,598.44/171,939.86 = 70,878.43/x
  3. Step 3: Cross multiply
    124,598.44x = 171,939.86 × 70,878.43
  4. Step 4: Simplify right side
    124,598.44x = 12,186,826,471.52
  5. Step 5: Solve for x
    x = 12,186,826,471.52/124,598.44
  6. Step 6: Final answer
    x = 97,808.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.