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Finding the Fourth Proportional to 93,079.64, 128,447.16 and 52,797.08

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Solution

The fourth proportional to 93,079.64, 128,447.16 and 52,797.08 is: 72,858.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,079.64 : 128,447.16 = 52,797.08 : x
  2. Step 2: Convert to fraction form
    93,079.64/128,447.16 = 52,797.08/x
  3. Step 3: Cross multiply
    93,079.64x = 128,447.16 × 52,797.08
  4. Step 4: Simplify right side
    93,079.64x = 6,781,634,982.29
  5. Step 5: Solve for x
    x = 6,781,634,982.29/93,079.64
  6. Step 6: Final answer
    x = 72,858.41

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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.