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Finding the Fourth Proportional to 93,886.77, 129,565.38 and 51,442.77

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Solution

The fourth proportional to 93,886.77, 129,565.38 and 51,442.77 is: 70,991.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,886.77 : 129,565.38 = 51,442.77 : x
  2. Step 2: Convert to fraction form
    93,886.77/129,565.38 = 51,442.77/x
  3. Step 3: Cross multiply
    93,886.77x = 129,565.38 × 51,442.77
  4. Step 4: Simplify right side
    93,886.77x = 6,665,202,043.30
  5. Step 5: Solve for x
    x = 6,665,202,043.30/93,886.77
  6. Step 6: Final answer
    x = 70,991.92

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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.