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Finding the Fourth Proportional to 499,903.65, 750,030.44 and 144,938.97

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Solution

The fourth proportional to 499,903.65, 750,030.44 and 144,938.97 is: 217,459.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,903.65 : 750,030.44 = 144,938.97 : x
  2. Step 2: Convert to fraction form
    499,903.65/750,030.44 = 144,938.97/x
  3. Step 3: Cross multiply
    499,903.65x = 750,030.44 × 144,938.97
  4. Step 4: Simplify right side
    499,903.65x = 108,708,638,717.55
  5. Step 5: Solve for x
    x = 108,708,638,717.55/499,903.65
  6. Step 6: Final answer
    x = 217,459.18

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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.