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Finding the Fourth Proportional to 114,192.64, 171,484.96 and 70,078.40

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Solution

The fourth proportional to 114,192.64, 171,484.96 and 70,078.40 is: 105,237.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,192.64 : 171,484.96 = 70,078.40 : x
  2. Step 2: Convert to fraction form
    114,192.64/171,484.96 = 70,078.40/x
  3. Step 3: Cross multiply
    114,192.64x = 171,484.96 × 70,078.40
  4. Step 4: Simplify right side
    114,192.64x = 12,017,391,620.86
  5. Step 5: Solve for x
    x = 12,017,391,620.86/114,192.64
  6. Step 6: Final answer
    x = 105,237.88

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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.