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Finding the Fourth Proportional to 92,998.58, 128,348.08 and 52,708.02

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Solution

The fourth proportional to 92,998.58, 128,348.08 and 52,708.02 is: 72,742.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,998.58 : 128,348.08 = 52,708.02 : x
  2. Step 2: Convert to fraction form
    92,998.58/128,348.08 = 52,708.02/x
  3. Step 3: Cross multiply
    92,998.58x = 128,348.08 × 52,708.02
  4. Step 4: Simplify right side
    92,998.58x = 6,764,973,068.77
  5. Step 5: Solve for x
    x = 6,764,973,068.77/92,998.58
  6. Step 6: Final answer
    x = 72,742.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.