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Finding the Fourth Proportional to 124,402.80, 171,713.61 and 118,055.64

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Solution

The fourth proportional to 124,402.80, 171,713.61 and 118,055.64 is: 162,952.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,402.80 : 171,713.61 = 118,055.64 : x
  2. Step 2: Convert to fraction form
    124,402.80/171,713.61 = 118,055.64/x
  3. Step 3: Cross multiply
    124,402.80x = 171,713.61 × 118,055.64
  4. Step 4: Simplify right side
    124,402.80x = 20,271,760,125.26
  5. Step 5: Solve for x
    x = 20,271,760,125.26/124,402.80
  6. Step 6: Final answer
    x = 162,952.60

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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.