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Finding the Fourth Proportional to 93,176.20, 139,910.10 and 53,810.20

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Solution

The fourth proportional to 93,176.20, 139,910.10 and 53,810.20 is: 80,799.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,176.20 : 139,910.10 = 53,810.20 : x
  2. Step 2: Convert to fraction form
    93,176.20/139,910.10 = 53,810.20/x
  3. Step 3: Cross multiply
    93,176.20x = 139,910.10 × 53,810.20
  4. Step 4: Simplify right side
    93,176.20x = 7,528,590,463.02
  5. Step 5: Solve for x
    x = 7,528,590,463.02/93,176.20
  6. Step 6: Final answer
    x = 80,799.50

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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.