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Finding the Fourth Proportional to 163,425.88, 225,331.50 and 118,031.32

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Solution

The fourth proportional to 163,425.88, 225,331.50 and 118,031.32 is: 162,741.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,425.88 : 225,331.50 = 118,031.32 : x
  2. Step 2: Convert to fraction form
    163,425.88/225,331.50 = 118,031.32/x
  3. Step 3: Cross multiply
    163,425.88x = 225,331.50 × 118,031.32
  4. Step 4: Simplify right side
    163,425.88x = 26,596,174,382.58
  5. Step 5: Solve for x
    x = 26,596,174,382.58/163,425.88
  6. Step 6: Final answer
    x = 162,741.51

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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.