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Finding the Fourth Proportional to 363,968.70, 545,758.65 and 153,368.70

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Solution

The fourth proportional to 363,968.70, 545,758.65 and 153,368.70 is: 229,971.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,968.70 : 545,758.65 = 153,368.70 : x
  2. Step 2: Convert to fraction form
    363,968.70/545,758.65 = 153,368.70/x
  3. Step 3: Cross multiply
    363,968.70x = 545,758.65 × 153,368.70
  4. Step 4: Simplify right side
    363,968.70x = 83,702,294,664.26
  5. Step 5: Solve for x
    x = 83,702,294,664.26/363,968.70
  6. Step 6: Final answer
    x = 229,971.13

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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.