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Finding the Fourth Proportional to 242,946.40, 364,246.80 and 93,128.80

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Solution

The fourth proportional to 242,946.40, 364,246.80 and 93,128.80 is: 139,626.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,946.40 : 364,246.80 = 93,128.80 : x
  2. Step 2: Convert to fraction form
    242,946.40/364,246.80 = 93,128.80/x
  3. Step 3: Cross multiply
    242,946.40x = 364,246.80 × 93,128.80
  4. Step 4: Simplify right side
    242,946.40x = 33,921,867,387.84
  5. Step 5: Solve for x
    x = 33,921,867,387.84/242,946.40
  6. Step 6: Final answer
    x = 139,626.96

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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.