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Finding the Fourth Proportional to 239,312.40, 358,903.80 and 70,832.40

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Solution

The fourth proportional to 239,312.40, 358,903.80 and 70,832.40 is: 106,229.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,312.40 : 358,903.80 = 70,832.40 : x
  2. Step 2: Convert to fraction form
    239,312.40/358,903.80 = 70,832.40/x
  3. Step 3: Cross multiply
    239,312.40x = 358,903.80 × 70,832.40
  4. Step 4: Simplify right side
    239,312.40x = 25,422,017,523.12
  5. Step 5: Solve for x
    x = 25,422,017,523.12/239,312.40
  6. Step 6: Final answer
    x = 106,229.42

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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.