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Finding the Fourth Proportional to 123,352, 170,226.24 and 66,763.36

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Solution

The fourth proportional to 123,352, 170,226.24 and 66,763.36 is: 92,133.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,352 : 170,226.24 = 66,763.36 : x
  2. Step 2: Convert to fraction form
    123,352/170,226.24 = 66,763.36/x
  3. Step 3: Cross multiply
    123,352x = 170,226.24 × 66,763.36
  4. Step 4: Simplify right side
    123,352x = 11,364,875,742.57
  5. Step 5: Solve for x
    x = 11,364,875,742.57/123,352
  6. Step 6: Final answer
    x = 92,133.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.