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Finding the Fourth Proportional to 93,078.80, 139,618.20 and 93,078.80

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Solution

The fourth proportional to 93,078.80, 139,618.20 and 93,078.80 is: 139,618.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,078.80 : 139,618.20 = 93,078.80 : x
  2. Step 2: Convert to fraction form
    93,078.80/139,618.20 = 93,078.80/x
  3. Step 3: Cross multiply
    93,078.80x = 139,618.20 × 93,078.80
  4. Step 4: Simplify right side
    93,078.80x = 12,995,494,514.16
  5. Step 5: Solve for x
    x = 12,995,494,514.16/93,078.80
  6. Step 6: Final answer
    x = 139,618.20

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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.