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Finding the Fourth Proportional to 93,886.16, 139,991.76 and 83,454.17

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Solution

The fourth proportional to 93,886.16, 139,991.76 and 83,454.17 is: 124,436.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,886.16 : 139,991.76 = 83,454.17 : x
  2. Step 2: Convert to fraction form
    93,886.16/139,991.76 = 83,454.17/x
  3. Step 3: Cross multiply
    93,886.16x = 139,991.76 × 83,454.17
  4. Step 4: Simplify right side
    93,886.16x = 11,682,895,437.68
  5. Step 5: Solve for x
    x = 11,682,895,437.68/93,886.16
  6. Step 6: Final answer
    x = 124,436.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.