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Finding the Fourth Proportional to 93,648.40, 129,124.36 and 75,687.86

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Solution

The fourth proportional to 93,648.40, 129,124.36 and 75,687.86 is: 104,360.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,648.40 : 129,124.36 = 75,687.86 : x
  2. Step 2: Convert to fraction form
    93,648.40/129,124.36 = 75,687.86/x
  3. Step 3: Cross multiply
    93,648.40x = 129,124.36 × 75,687.86
  4. Step 4: Simplify right side
    93,648.40x = 9,773,146,899.69
  5. Step 5: Solve for x
    x = 9,773,146,899.69/93,648.40
  6. Step 6: Final answer
    x = 104,360.00

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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.