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Finding the Fourth Proportional to 508,329.61, 762,499.88 and 153,346.70

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Solution

The fourth proportional to 508,329.61, 762,499.88 and 153,346.70 is: 230,021.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,329.61 : 762,499.88 = 153,346.70 : x
  2. Step 2: Convert to fraction form
    508,329.61/762,499.88 = 153,346.70/x
  3. Step 3: Cross multiply
    508,329.61x = 762,499.88 × 153,346.70
  4. Step 4: Simplify right side
    508,329.61x = 116,926,842,062.96
  5. Step 5: Solve for x
    x = 116,926,842,062.96/508,329.61
  6. Step 6: Final answer
    x = 230,021.70

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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.