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Finding the Fourth Proportional to 124,503.54, 186,575.90 and 71,030.70

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Solution

The fourth proportional to 124,503.54, 186,575.90 and 71,030.70 is: 106,443.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,503.54 : 186,575.90 = 71,030.70 : x
  2. Step 2: Convert to fraction form
    124,503.54/186,575.90 = 71,030.70/x
  3. Step 3: Cross multiply
    124,503.54x = 186,575.90 × 71,030.70
  4. Step 4: Simplify right side
    124,503.54x = 13,252,616,424.98
  5. Step 5: Solve for x
    x = 13,252,616,424.98/124,503.54
  6. Step 6: Final answer
    x = 106,443.69

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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.