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Finding the Fourth Proportional to 93,267.92, 128,686.92 and 59,779.28

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Solution

The fourth proportional to 93,267.92, 128,686.92 and 59,779.28 is: 82,480.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,267.92 : 128,686.92 = 59,779.28 : x
  2. Step 2: Convert to fraction form
    93,267.92/128,686.92 = 59,779.28/x
  3. Step 3: Cross multiply
    93,267.92x = 128,686.92 × 59,779.28
  4. Step 4: Simplify right side
    93,267.92x = 7,692,811,423.02
  5. Step 5: Solve for x
    x = 7,692,811,423.02/93,267.92
  6. Step 6: Final answer
    x = 82,480.79

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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.