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Finding the Fourth Proportional to 103,659.77, 155,417.52 and 45,925.67

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Solution

The fourth proportional to 103,659.77, 155,417.52 and 45,925.67 is: 68,856.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,659.77 : 155,417.52 = 45,925.67 : x
  2. Step 2: Convert to fraction form
    103,659.77/155,417.52 = 45,925.67/x
  3. Step 3: Cross multiply
    103,659.77x = 155,417.52 × 45,925.67
  4. Step 4: Simplify right side
    103,659.77x = 7,137,653,952.06
  5. Step 5: Solve for x
    x = 7,137,653,952.06/103,659.77
  6. Step 6: Final answer
    x = 68,856.55

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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.