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Finding the Fourth Proportional to 155,752.40, 233,743.80 and 103,144.40

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Solution

The fourth proportional to 155,752.40, 233,743.80 and 103,144.40 is: 154,792.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,752.40 : 233,743.80 = 103,144.40 : x
  2. Step 2: Convert to fraction form
    155,752.40/233,743.80 = 103,144.40/x
  3. Step 3: Cross multiply
    155,752.40x = 233,743.80 × 103,144.40
  4. Step 4: Simplify right side
    155,752.40x = 24,109,364,004.72
  5. Step 5: Solve for x
    x = 24,109,364,004.72/155,752.40
  6. Step 6: Final answer
    x = 154,792.89

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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.