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Finding the Fourth Proportional to 224,710.08, 310,116.24 and 129,246.72

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Solution

The fourth proportional to 224,710.08, 310,116.24 and 129,246.72 is: 178,369.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,710.08 : 310,116.24 = 129,246.72 : x
  2. Step 2: Convert to fraction form
    224,710.08/310,116.24 = 129,246.72/x
  3. Step 3: Cross multiply
    224,710.08x = 310,116.24 × 129,246.72
  4. Step 4: Simplify right side
    224,710.08x = 40,081,506,838.73
  5. Step 5: Solve for x
    x = 40,081,506,838.73/224,710.08
  6. Step 6: Final answer
    x = 178,369.87

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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.