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Finding the Fourth Proportional to 169,886.40, 234,422.86 and 93,392.88

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Solution

The fourth proportional to 169,886.40, 234,422.86 and 93,392.88 is: 128,870.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,886.40 : 234,422.86 = 93,392.88 : x
  2. Step 2: Convert to fraction form
    169,886.40/234,422.86 = 93,392.88/x
  3. Step 3: Cross multiply
    169,886.40x = 234,422.86 × 93,392.88
  4. Step 4: Simplify right side
    169,886.40x = 21,893,426,033.24
  5. Step 5: Solve for x
    x = 21,893,426,033.24/169,886.40
  6. Step 6: Final answer
    x = 128,870.98

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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.