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Finding the Fourth Proportional to 124,397.82, 171,662.79 and 70,675.74

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Solution

The fourth proportional to 124,397.82, 171,662.79 and 70,675.74 is: 97,529.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,397.82 : 171,662.79 = 70,675.74 : x
  2. Step 2: Convert to fraction form
    124,397.82/171,662.79 = 70,675.74/x
  3. Step 3: Cross multiply
    124,397.82x = 171,662.79 × 70,675.74
  4. Step 4: Simplify right side
    124,397.82x = 12,132,394,713.71
  5. Step 5: Solve for x
    x = 12,132,394,713.71/124,397.82
  6. Step 6: Final answer
    x = 97,529.00

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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.