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Finding the Fourth Proportional to 219,783.42, 329,724.86 and 70,032.24

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Solution

The fourth proportional to 219,783.42, 329,724.86 and 70,032.24 is: 105,064.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,783.42 : 329,724.86 = 70,032.24 : x
  2. Step 2: Convert to fraction form
    219,783.42/329,724.86 = 70,032.24/x
  3. Step 3: Cross multiply
    219,783.42x = 329,724.86 × 70,032.24
  4. Step 4: Simplify right side
    219,783.42x = 23,091,370,179.33
  5. Step 5: Solve for x
    x = 23,091,370,179.33/219,783.42
  6. Step 6: Final answer
    x = 105,064.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.