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Finding the Fourth Proportional to 393,740.92, 590,045.46 and 169,041.52

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Solution

The fourth proportional to 393,740.92, 590,045.46 and 169,041.52 is: 253,319.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,740.92 : 590,045.46 = 169,041.52 : x
  2. Step 2: Convert to fraction form
    393,740.92/590,045.46 = 169,041.52/x
  3. Step 3: Cross multiply
    393,740.92x = 590,045.46 × 169,041.52
  4. Step 4: Simplify right side
    393,740.92x = 99,742,181,427.50
  5. Step 5: Solve for x
    x = 99,742,181,427.50/393,740.92
  6. Step 6: Final answer
    x = 253,319.32

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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.