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Finding the Fourth Proportional to 125,693.79, 173,432.57 and 70,504.89

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Solution

The fourth proportional to 125,693.79, 173,432.57 and 70,504.89 is: 97,282.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,693.79 : 173,432.57 = 70,504.89 : x
  2. Step 2: Convert to fraction form
    125,693.79/173,432.57 = 70,504.89/x
  3. Step 3: Cross multiply
    125,693.79x = 173,432.57 × 70,504.89
  4. Step 4: Simplify right side
    125,693.79x = 12,227,843,917.74
  5. Step 5: Solve for x
    x = 12,227,843,917.74/125,693.79
  6. Step 6: Final answer
    x = 97,282.80

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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.