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Finding the Fourth Proportional to 157,751.68, 236,631.20 and 52,579.20

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Solution

The fourth proportional to 157,751.68, 236,631.20 and 52,579.20 is: 78,870.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,751.68 : 236,631.20 = 52,579.20 : x
  2. Step 2: Convert to fraction form
    157,751.68/236,631.20 = 52,579.20/x
  3. Step 3: Cross multiply
    157,751.68x = 236,631.20 × 52,579.20
  4. Step 4: Simplify right side
    157,751.68x = 12,441,879,191.04
  5. Step 5: Solve for x
    x = 12,441,879,191.04/157,751.68
  6. Step 6: Final answer
    x = 78,870.03

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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.