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Finding the Fourth Proportional to 123,602.40, 170,574.90 and 69,886.26

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Solution

The fourth proportional to 123,602.40, 170,574.90 and 69,886.26 is: 96,445.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,602.40 : 170,574.90 = 69,886.26 : x
  2. Step 2: Convert to fraction form
    123,602.40/170,574.90 = 69,886.26/x
  3. Step 3: Cross multiply
    123,602.40x = 170,574.90 × 69,886.26
  4. Step 4: Simplify right side
    123,602.40x = 11,920,840,958.00
  5. Step 5: Solve for x
    x = 11,920,840,958.00/123,602.40
  6. Step 6: Final answer
    x = 96,445.06

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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.