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Finding the Fourth Proportional to 310,842.40, 466,164.72 and 100,430.56

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Solution

The fourth proportional to 310,842.40, 466,164.72 and 100,430.56 is: 150,613.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,842.40 : 466,164.72 = 100,430.56 : x
  2. Step 2: Convert to fraction form
    310,842.40/466,164.72 = 100,430.56/x
  3. Step 3: Cross multiply
    310,842.40x = 466,164.72 × 100,430.56
  4. Step 4: Simplify right side
    310,842.40x = 46,817,183,881.84
  5. Step 5: Solve for x
    x = 46,817,183,881.84/310,842.40
  6. Step 6: Final answer
    x = 150,613.89

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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.