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Finding the Fourth Proportional to 92,870.80, 139,342.65 and 36,701.35

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Solution

The fourth proportional to 92,870.80, 139,342.65 and 36,701.35 is: 55,066.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,870.80 : 139,342.65 = 36,701.35 : x
  2. Step 2: Convert to fraction form
    92,870.80/139,342.65 = 36,701.35/x
  3. Step 3: Cross multiply
    92,870.80x = 139,342.65 × 36,701.35
  4. Step 4: Simplify right side
    92,870.80x = 5,114,063,367.58
  5. Step 5: Solve for x
    x = 5,114,063,367.58/92,870.80
  6. Step 6: Final answer
    x = 55,066.43

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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.