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Finding the Fourth Proportional to 157,774.65, 236,486.68 and 120,210.88

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Solution

The fourth proportional to 157,774.65, 236,486.68 and 120,210.88 is: 180,182.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,774.65 : 236,486.68 = 120,210.88 : x
  2. Step 2: Convert to fraction form
    157,774.65/236,486.68 = 120,210.88/x
  3. Step 3: Cross multiply
    157,774.65x = 236,486.68 × 120,210.88
  4. Step 4: Simplify right side
    157,774.65x = 28,428,271,906.16
  5. Step 5: Solve for x
    x = 28,428,271,906.16/157,774.65
  6. Step 6: Final answer
    x = 180,182.76

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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.