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Finding the Fourth Proportional to 242,416.60, 334,544.76 and 134,979.82

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Solution

The fourth proportional to 242,416.60, 334,544.76 and 134,979.82 is: 186,277.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,416.60 : 334,544.76 = 134,979.82 : x
  2. Step 2: Convert to fraction form
    242,416.60/334,544.76 = 134,979.82/x
  3. Step 3: Cross multiply
    242,416.60x = 334,544.76 × 134,979.82
  4. Step 4: Simplify right side
    242,416.60x = 45,156,791,486.74
  5. Step 5: Solve for x
    x = 45,156,791,486.74/242,416.60
  6. Step 6: Final answer
    x = 186,277.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.