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Finding the Fourth Proportional to 151,496.64, 209,066.40 and 84,432.96

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Solution

The fourth proportional to 151,496.64, 209,066.40 and 84,432.96 is: 116,518.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,496.64 : 209,066.40 = 84,432.96 : x
  2. Step 2: Convert to fraction form
    151,496.64/209,066.40 = 84,432.96/x
  3. Step 3: Cross multiply
    151,496.64x = 209,066.40 × 84,432.96
  4. Step 4: Simplify right side
    151,496.64x = 17,652,094,988.54
  5. Step 5: Solve for x
    x = 17,652,094,988.54/151,496.64
  6. Step 6: Final answer
    x = 116,518.06

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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.