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Finding the Fourth Proportional to 207,123.94, 285,828.32 and 116,479.88

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Solution

The fourth proportional to 207,123.94, 285,828.32 and 116,479.88 is: 160,740.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,123.94 : 285,828.32 = 116,479.88 : x
  2. Step 2: Convert to fraction form
    207,123.94/285,828.32 = 116,479.88/x
  3. Step 3: Cross multiply
    207,123.94x = 285,828.32 × 116,479.88
  4. Step 4: Simplify right side
    207,123.94x = 33,293,246,985.06
  5. Step 5: Solve for x
    x = 33,293,246,985.06/207,123.94
  6. Step 6: Final answer
    x = 160,740.70

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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.