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Finding the Fourth Proportional to 93,127.50, 128,515.95 and 50,686.34

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Solution

The fourth proportional to 93,127.50, 128,515.95 and 50,686.34 is: 69,947.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,127.50 : 128,515.95 = 50,686.34 : x
  2. Step 2: Convert to fraction form
    93,127.50/128,515.95 = 50,686.34/x
  3. Step 3: Cross multiply
    93,127.50x = 128,515.95 × 50,686.34
  4. Step 4: Simplify right side
    93,127.50x = 6,514,002,494.54
  5. Step 5: Solve for x
    x = 6,514,002,494.54/93,127.50
  6. Step 6: Final answer
    x = 69,947.14

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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.