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Finding the Fourth Proportional to 243,314.40, 364,971.60 and 176,440.80

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Solution

The fourth proportional to 243,314.40, 364,971.60 and 176,440.80 is: 264,661.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,314.40 : 364,971.60 = 176,440.80 : x
  2. Step 2: Convert to fraction form
    243,314.40/364,971.60 = 176,440.80/x
  3. Step 3: Cross multiply
    243,314.40x = 364,971.60 × 176,440.80
  4. Step 4: Simplify right side
    243,314.40x = 64,395,881,081.28
  5. Step 5: Solve for x
    x = 64,395,881,081.28/243,314.40
  6. Step 6: Final answer
    x = 264,661.20

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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.