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Finding the Fourth Proportional to 153,167.60, 229,924.20 and 90,873.20

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Solution

The fourth proportional to 153,167.60, 229,924.20 and 90,873.20 is: 136,412.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,167.60 : 229,924.20 = 90,873.20 : x
  2. Step 2: Convert to fraction form
    153,167.60/229,924.20 = 90,873.20/x
  3. Step 3: Cross multiply
    153,167.60x = 229,924.20 × 90,873.20
  4. Step 4: Simplify right side
    153,167.60x = 20,893,947,811.44
  5. Step 5: Solve for x
    x = 20,893,947,811.44/153,167.60
  6. Step 6: Final answer
    x = 136,412.32

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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.