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Finding the Fourth Proportional to 110,656.82, 152,585.19 and 74,784.53

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Solution

The fourth proportional to 110,656.82, 152,585.19 and 74,784.53 is: 103,120.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,656.82 : 152,585.19 = 74,784.53 : x
  2. Step 2: Convert to fraction form
    110,656.82/152,585.19 = 74,784.53/x
  3. Step 3: Cross multiply
    110,656.82x = 152,585.19 × 74,784.53
  4. Step 4: Simplify right side
    110,656.82x = 11,411,010,956.18
  5. Step 5: Solve for x
    x = 11,411,010,956.18/110,656.82
  6. Step 6: Final answer
    x = 103,120.72

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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.