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Finding the Fourth Proportional to 186,305.91, 257,102.76 and 101,423.58

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Solution

The fourth proportional to 186,305.91, 257,102.76 and 101,423.58 is: 139,964.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,305.91 : 257,102.76 = 101,423.58 : x
  2. Step 2: Convert to fraction form
    186,305.91/257,102.76 = 101,423.58/x
  3. Step 3: Cross multiply
    186,305.91x = 257,102.76 × 101,423.58
  4. Step 4: Simplify right side
    186,305.91x = 26,076,281,192.78
  5. Step 5: Solve for x
    x = 26,076,281,192.78/186,305.91
  6. Step 6: Final answer
    x = 139,964.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.