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Finding the Fourth Proportional to 93,117.60, 139,725 and 88,098.84

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Solution

The fourth proportional to 93,117.60, 139,725 and 88,098.84 is: 132,194.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,117.60 : 139,725 = 88,098.84 : x
  2. Step 2: Convert to fraction form
    93,117.60/139,725 = 88,098.84/x
  3. Step 3: Cross multiply
    93,117.60x = 139,725 × 88,098.84
  4. Step 4: Simplify right side
    93,117.60x = 12,309,610,419
  5. Step 5: Solve for x
    x = 12,309,610,419/93,117.60
  6. Step 6: Final answer
    x = 132,194.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.