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Finding the Fourth Proportional to 93,158.71, 128,554.77 and 50,717.14

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Solution

The fourth proportional to 93,158.71, 128,554.77 and 50,717.14 is: 69,987.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,158.71 : 128,554.77 = 50,717.14 : x
  2. Step 2: Convert to fraction form
    93,158.71/128,554.77 = 50,717.14/x
  3. Step 3: Cross multiply
    93,158.71x = 128,554.77 × 50,717.14
  4. Step 4: Simplify right side
    93,158.71x = 6,519,930,267.76
  5. Step 5: Solve for x
    x = 6,519,930,267.76/93,158.71
  6. Step 6: Final answer
    x = 69,987.34

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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.