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Finding the Fourth Proportional to 213,056.92, 294,008.70 and 122,349.06

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Solution

The fourth proportional to 213,056.92, 294,008.70 and 122,349.06 is: 168,836.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,056.92 : 294,008.70 = 122,349.06 : x
  2. Step 2: Convert to fraction form
    213,056.92/294,008.70 = 122,349.06/x
  3. Step 3: Cross multiply
    213,056.92x = 294,008.70 × 122,349.06
  4. Step 4: Simplify right side
    213,056.92x = 35,971,688,076.82
  5. Step 5: Solve for x
    x = 35,971,688,076.82/213,056.92
  6. Step 6: Final answer
    x = 168,836.05

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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.