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Finding the Fourth Proportional to 173,653.88, 239,412.63 and 125,215.28

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Solution

The fourth proportional to 173,653.88, 239,412.63 and 125,215.28 is: 172,631.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,653.88 : 239,412.63 = 125,215.28 : x
  2. Step 2: Convert to fraction form
    173,653.88/239,412.63 = 125,215.28/x
  3. Step 3: Cross multiply
    173,653.88x = 239,412.63 × 125,215.28
  4. Step 4: Simplify right side
    173,653.88x = 29,978,118,303.92
  5. Step 5: Solve for x
    x = 29,978,118,303.92/173,653.88
  6. Step 6: Final answer
    x = 172,631.43

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1.5x scale

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.