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Finding the Fourth Proportional to 158,891.60, 238,272.60 and 53,656.40

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Solution

The fourth proportional to 158,891.60, 238,272.60 and 53,656.40 is: 80,462.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,891.60 : 238,272.60 = 53,656.40 : x
  2. Step 2: Convert to fraction form
    158,891.60/238,272.60 = 53,656.40/x
  3. Step 3: Cross multiply
    158,891.60x = 238,272.60 × 53,656.40
  4. Step 4: Simplify right side
    158,891.60x = 12,784,849,934.64
  5. Step 5: Solve for x
    x = 12,784,849,934.64/158,891.60
  6. Step 6: Final answer
    x = 80,462.72

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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.