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Finding the Fourth Proportional to 109,172.64, 163,703.57 and 49,957.57

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Solution

The fourth proportional to 109,172.64, 163,703.57 and 49,957.57 is: 74,911.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,172.64 : 163,703.57 = 49,957.57 : x
  2. Step 2: Convert to fraction form
    109,172.64/163,703.57 = 49,957.57/x
  3. Step 3: Cross multiply
    109,172.64x = 163,703.57 × 49,957.57
  4. Step 4: Simplify right side
    109,172.64x = 8,178,231,898.48
  5. Step 5: Solve for x
    x = 8,178,231,898.48/109,172.64
  6. Step 6: Final answer
    x = 74,911.00

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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.