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Finding the Fourth Proportional to 370,475.64, 555,655.28 and 117,722.84

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Solution

The fourth proportional to 370,475.64, 555,655.28 and 117,722.84 is: 176,565.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,475.64 : 555,655.28 = 117,722.84 : x
  2. Step 2: Convert to fraction form
    370,475.64/555,655.28 = 117,722.84/x
  3. Step 3: Cross multiply
    370,475.64x = 555,655.28 × 117,722.84
  4. Step 4: Simplify right side
    370,475.64x = 65,413,314,255.70
  5. Step 5: Solve for x
    x = 65,413,314,255.70/370,475.64
  6. Step 6: Final answer
    x = 176,565.76

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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.