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Finding the Fourth Proportional to 353,448.60, 530,172.90 and 153,864.60

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Solution

The fourth proportional to 353,448.60, 530,172.90 and 153,864.60 is: 230,796.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,448.60 : 530,172.90 = 153,864.60 : x
  2. Step 2: Convert to fraction form
    353,448.60/530,172.90 = 153,864.60/x
  3. Step 3: Cross multiply
    353,448.60x = 530,172.90 × 153,864.60
  4. Step 4: Simplify right side
    353,448.60x = 81,574,841,189.34
  5. Step 5: Solve for x
    x = 81,574,841,189.34/353,448.60
  6. Step 6: Final answer
    x = 230,796.90

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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.