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Finding the Fourth Proportional to 152,328.60, 228,492.90 and 52,479.90

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Solution

The fourth proportional to 152,328.60, 228,492.90 and 52,479.90 is: 78,719.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,328.60 : 228,492.90 = 52,479.90 : x
  2. Step 2: Convert to fraction form
    152,328.60/228,492.90 = 52,479.90/x
  3. Step 3: Cross multiply
    152,328.60x = 228,492.90 × 52,479.90
  4. Step 4: Simplify right side
    152,328.60x = 11,991,284,542.71
  5. Step 5: Solve for x
    x = 11,991,284,542.71/152,328.60
  6. Step 6: Final answer
    x = 78,719.85

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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.