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Finding the Fourth Proportional to 294,060.13, 405,740.28 and 173,157.28

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Solution

The fourth proportional to 294,060.13, 405,740.28 and 173,157.28 is: 238,920.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,060.13 : 405,740.28 = 173,157.28 : x
  2. Step 2: Convert to fraction form
    294,060.13/405,740.28 = 173,157.28/x
  3. Step 3: Cross multiply
    294,060.13x = 405,740.28 × 173,157.28
  4. Step 4: Simplify right side
    294,060.13x = 70,256,883,271.24
  5. Step 5: Solve for x
    x = 70,256,883,271.24/294,060.13
  6. Step 6: Final answer
    x = 238,920.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.