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Finding the Fourth Proportional to 90,866.64, 136,298.74 and 23,398.30

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Solution

The fourth proportional to 90,866.64, 136,298.74 and 23,398.30 is: 35,097.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,866.64 : 136,298.74 = 23,398.30 : x
  2. Step 2: Convert to fraction form
    90,866.64/136,298.74 = 23,398.30/x
  3. Step 3: Cross multiply
    90,866.64x = 136,298.74 × 23,398.30
  4. Step 4: Simplify right side
    90,866.64x = 3,189,158,808.14
  5. Step 5: Solve for x
    x = 3,189,158,808.14/90,866.64
  6. Step 6: Final answer
    x = 35,097.14

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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.