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Finding the Fourth Proportional to 93,022.40, 139,533.60 and 88,648.40

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Solution

The fourth proportional to 93,022.40, 139,533.60 and 88,648.40 is: 132,972.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,022.40 : 139,533.60 = 88,648.40 : x
  2. Step 2: Convert to fraction form
    93,022.40/139,533.60 = 88,648.40/x
  3. Step 3: Cross multiply
    93,022.40x = 139,533.60 × 88,648.40
  4. Step 4: Simplify right side
    93,022.40x = 12,369,430,386.24
  5. Step 5: Solve for x
    x = 12,369,430,386.24/93,022.40
  6. Step 6: Final answer
    x = 132,972.60

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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.