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Finding the Fourth Proportional to 239,019.30, 358,445.31 and 70,494.88

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Solution

The fourth proportional to 239,019.30, 358,445.31 and 70,494.88 is: 105,717.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,019.30 : 358,445.31 = 70,494.88 : x
  2. Step 2: Convert to fraction form
    239,019.30/358,445.31 = 70,494.88/x
  3. Step 3: Cross multiply
    239,019.30x = 358,445.31 × 70,494.88
  4. Step 4: Simplify right side
    239,019.30x = 25,268,559,115.01
  5. Step 5: Solve for x
    x = 25,268,559,115.01/239,019.30
  6. Step 6: Final answer
    x = 105,717.65

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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.