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Finding the Fourth Proportional to 207,042.20, 310,368.90 and 162,038.60

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Solution

The fourth proportional to 207,042.20, 310,368.90 and 162,038.60 is: 242,905.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,042.20 : 310,368.90 = 162,038.60 : x
  2. Step 2: Convert to fraction form
    207,042.20/310,368.90 = 162,038.60/x
  3. Step 3: Cross multiply
    207,042.20x = 310,368.90 × 162,038.60
  4. Step 4: Simplify right side
    207,042.20x = 50,291,742,039.54
  5. Step 5: Solve for x
    x = 50,291,742,039.54/207,042.20
  6. Step 6: Final answer
    x = 242,905.76

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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.