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Finding the Fourth Proportional to 93,080.30, 128,460.30 and 54,851.76

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Solution

The fourth proportional to 93,080.30, 128,460.30 and 54,851.76 is: 75,701.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,080.30 : 128,460.30 = 54,851.76 : x
  2. Step 2: Convert to fraction form
    93,080.30/128,460.30 = 54,851.76/x
  3. Step 3: Cross multiply
    93,080.30x = 128,460.30 × 54,851.76
  4. Step 4: Simplify right side
    93,080.30x = 7,046,273,545.13
  5. Step 5: Solve for x
    x = 7,046,273,545.13/93,080.30
  6. Step 6: Final answer
    x = 75,701.02

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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.