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Finding the Fourth Proportional to 163,756.41, 245,620.50 and 99,697.96

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Solution

The fourth proportional to 163,756.41, 245,620.50 and 99,697.96 is: 149,538.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,756.41 : 245,620.50 = 99,697.96 : x
  2. Step 2: Convert to fraction form
    163,756.41/245,620.50 = 99,697.96/x
  3. Step 3: Cross multiply
    163,756.41x = 245,620.50 × 99,697.96
  4. Step 4: Simplify right side
    163,756.41x = 24,487,862,717.34
  5. Step 5: Solve for x
    x = 24,487,862,717.34/163,756.41
  6. Step 6: Final answer
    x = 149,538.35

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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.