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Finding the Fourth Proportional to 318,492.88, 439,530.60 and 175,263.28

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Solution

The fourth proportional to 318,492.88, 439,530.60 and 175,263.28 is: 241,869.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,492.88 : 439,530.60 = 175,263.28 : x
  2. Step 2: Convert to fraction form
    318,492.88/439,530.60 = 175,263.28/x
  3. Step 3: Cross multiply
    318,492.88x = 439,530.60 × 175,263.28
  4. Step 4: Simplify right side
    318,492.88x = 77,033,574,616.37
  5. Step 5: Solve for x
    x = 77,033,574,616.37/318,492.88
  6. Step 6: Final answer
    x = 241,869.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.