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Finding the Fourth Proportional to 103,152.61, 154,740.48 and 92,557.49

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Solution

The fourth proportional to 103,152.61, 154,740.48 and 92,557.49 is: 138,846.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,152.61 : 154,740.48 = 92,557.49 : x
  2. Step 2: Convert to fraction form
    103,152.61/154,740.48 = 92,557.49/x
  3. Step 3: Cross multiply
    103,152.61x = 154,740.48 × 92,557.49
  4. Step 4: Simplify right side
    103,152.61x = 14,322,390,430.20
  5. Step 5: Solve for x
    x = 14,322,390,430.20/103,152.61
  6. Step 6: Final answer
    x = 138,846.62

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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.