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Finding the Fourth Proportional to 93,026.68, 128,229.44 and 85,304.02

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Solution

The fourth proportional to 93,026.68, 128,229.44 and 85,304.02 is: 117,584.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,026.68 : 128,229.44 = 85,304.02 : x
  2. Step 2: Convert to fraction form
    93,026.68/128,229.44 = 85,304.02/x
  3. Step 3: Cross multiply
    93,026.68x = 128,229.44 × 85,304.02
  4. Step 4: Simplify right side
    93,026.68x = 10,938,486,714.35
  5. Step 5: Solve for x
    x = 10,938,486,714.35/93,026.68
  6. Step 6: Final answer
    x = 117,584.40

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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.