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Finding the Fourth Proportional to 169,518.78, 234,178.92 and 135,482.58

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Solution

The fourth proportional to 169,518.78, 234,178.92 and 135,482.58 is: 187,160.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,518.78 : 234,178.92 = 135,482.58 : x
  2. Step 2: Convert to fraction form
    169,518.78/234,178.92 = 135,482.58/x
  3. Step 3: Cross multiply
    169,518.78x = 234,178.92 × 135,482.58
  4. Step 4: Simplify right side
    169,518.78x = 31,727,164,263.21
  5. Step 5: Solve for x
    x = 31,727,164,263.21/169,518.78
  6. Step 6: Final answer
    x = 187,160.17

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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.