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Finding the Fourth Proportional to 93,133.06, 128,519.13 and 50,689.06

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Solution

The fourth proportional to 93,133.06, 128,519.13 and 50,689.06 is: 69,948.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,133.06 : 128,519.13 = 50,689.06 : x
  2. Step 2: Convert to fraction form
    93,133.06/128,519.13 = 50,689.06/x
  3. Step 3: Cross multiply
    93,133.06x = 128,519.13 × 50,689.06
  4. Step 4: Simplify right side
    93,133.06x = 6,514,513,891.72
  5. Step 5: Solve for x
    x = 6,514,513,891.72/93,133.06
  6. Step 6: Final answer
    x = 69,948.46

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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.