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Finding the Fourth Proportional to 508,492.13, 762,716.30 and 153,495.54

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Solution

The fourth proportional to 508,492.13, 762,716.30 and 153,495.54 is: 230,236.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,492.13 : 762,716.30 = 153,495.54 : x
  2. Step 2: Convert to fraction form
    508,492.13/762,716.30 = 153,495.54/x
  3. Step 3: Cross multiply
    508,492.13x = 762,716.30 × 153,495.54
  4. Step 4: Simplify right side
    508,492.13x = 117,073,549,567.82
  5. Step 5: Solve for x
    x = 117,073,549,567.82/508,492.13
  6. Step 6: Final answer
    x = 230,236.70

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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.