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Finding the Fourth Proportional to 242,672.48, 364,009.68 and 74,192.20

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Solution

The fourth proportional to 242,672.48, 364,009.68 and 74,192.20 is: 111,288.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,672.48 : 364,009.68 = 74,192.20 : x
  2. Step 2: Convert to fraction form
    242,672.48/364,009.68 = 74,192.20/x
  3. Step 3: Cross multiply
    242,672.48x = 364,009.68 × 74,192.20
  4. Step 4: Simplify right side
    242,672.48x = 27,006,678,980.50
  5. Step 5: Solve for x
    x = 27,006,678,980.50/242,672.48
  6. Step 6: Final answer
    x = 111,288.59

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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.