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Finding the Fourth Proportional to 242,699.76, 364,049.64 and 76,487.76

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Solution

The fourth proportional to 242,699.76, 364,049.64 and 76,487.76 is: 114,731.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,699.76 : 364,049.64 = 76,487.76 : x
  2. Step 2: Convert to fraction form
    242,699.76/364,049.64 = 76,487.76/x
  3. Step 3: Cross multiply
    242,699.76x = 364,049.64 × 76,487.76
  4. Step 4: Simplify right side
    242,699.76x = 27,845,341,492.41
  5. Step 5: Solve for x
    x = 27,845,341,492.41/242,699.76
  6. Step 6: Final answer
    x = 114,731.64

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1.5x scale

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.