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Finding the Fourth Proportional to 149,337.87, 223,929.03 and 70,430.91

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Solution

The fourth proportional to 149,337.87, 223,929.03 and 70,430.91 is: 105,609.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,337.87 : 223,929.03 = 70,430.91 : x
  2. Step 2: Convert to fraction form
    149,337.87/223,929.03 = 70,430.91/x
  3. Step 3: Cross multiply
    149,337.87x = 223,929.03 × 70,430.91
  4. Step 4: Simplify right side
    149,337.87x = 15,771,525,358.32
  5. Step 5: Solve for x
    x = 15,771,525,358.32/149,337.87
  6. Step 6: Final answer
    x = 105,609.68

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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.