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Finding the Fourth Proportional to 239,037.89, 358,473.26 and 70,513.47

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Solution

The fourth proportional to 239,037.89, 358,473.26 and 70,513.47 is: 105,745.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,037.89 : 358,473.26 = 70,513.47 : x
  2. Step 2: Convert to fraction form
    239,037.89/358,473.26 = 70,513.47/x
  3. Step 3: Cross multiply
    239,037.89x = 358,473.26 × 70,513.47
  4. Step 4: Simplify right side
    239,037.89x = 25,277,193,641.10
  5. Step 5: Solve for x
    x = 25,277,193,641.10/239,037.89
  6. Step 6: Final answer
    x = 105,745.55

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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.