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Finding the Fourth Proportional to 238,212.34, 328,886.85 and 147,664.60

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Solution

The fourth proportional to 238,212.34, 328,886.85 and 147,664.60 is: 203,872.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,212.34 : 328,886.85 = 147,664.60 : x
  2. Step 2: Convert to fraction form
    238,212.34/328,886.85 = 147,664.60/x
  3. Step 3: Cross multiply
    238,212.34x = 328,886.85 × 147,664.60
  4. Step 4: Simplify right side
    238,212.34x = 48,564,945,150.51
  5. Step 5: Solve for x
    x = 48,564,945,150.51/238,212.34
  6. Step 6: Final answer
    x = 203,872.50

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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.