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Finding the Fourth Proportional to 475,039.08, 712,492.74 and 120,031.24

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Solution

The fourth proportional to 475,039.08, 712,492.74 and 120,031.24 is: 180,030.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,039.08 : 712,492.74 = 120,031.24 : x
  2. Step 2: Convert to fraction form
    475,039.08/712,492.74 = 120,031.24/x
  3. Step 3: Cross multiply
    475,039.08x = 712,492.74 × 120,031.24
  4. Step 4: Simplify right side
    475,039.08x = 85,521,387,073.20
  5. Step 5: Solve for x
    x = 85,521,387,073.20/475,039.08
  6. Step 6: Final answer
    x = 180,030.21

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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.