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Finding the Fourth Proportional to 165,671.30, 248,312.55 and 70,901.30

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Solution

The fourth proportional to 165,671.30, 248,312.55 and 70,901.30 is: 106,268.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,671.30 : 248,312.55 = 70,901.30 : x
  2. Step 2: Convert to fraction form
    165,671.30/248,312.55 = 70,901.30/x
  3. Step 3: Cross multiply
    165,671.30x = 248,312.55 × 70,901.30
  4. Step 4: Simplify right side
    165,671.30x = 17,605,682,601.32
  5. Step 5: Solve for x
    x = 17,605,682,601.32/165,671.30
  6. Step 6: Final answer
    x = 106,268.75

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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.