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Finding the Fourth Proportional to 568,656.52, 852,985.88 and 147,931.72

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Solution

The fourth proportional to 568,656.52, 852,985.88 and 147,931.72 is: 221,897.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,656.52 : 852,985.88 = 147,931.72 : x
  2. Step 2: Convert to fraction form
    568,656.52/852,985.88 = 147,931.72/x
  3. Step 3: Cross multiply
    568,656.52x = 852,985.88 × 147,931.72
  4. Step 4: Simplify right side
    568,656.52x = 126,183,668,364.11
  5. Step 5: Solve for x
    x = 126,183,668,364.11/568,656.52
  6. Step 6: Final answer
    x = 221,897.87

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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.