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Finding the Fourth Proportional to 93,618.80, 140,428.20 and 88,807.40

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Solution

The fourth proportional to 93,618.80, 140,428.20 and 88,807.40 is: 133,211.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,618.80 : 140,428.20 = 88,807.40 : x
  2. Step 2: Convert to fraction form
    93,618.80/140,428.20 = 88,807.40/x
  3. Step 3: Cross multiply
    93,618.80x = 140,428.20 × 88,807.40
  4. Step 4: Simplify right side
    93,618.80x = 12,471,063,328.68
  5. Step 5: Solve for x
    x = 12,471,063,328.68/93,618.80
  6. Step 6: Final answer
    x = 133,211.10

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1.5x scale

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.