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Finding the Fourth Proportional to 319,358.59, 478,956.17 and 94,666.51

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Solution

The fourth proportional to 319,358.59, 478,956.17 and 94,666.51 is: 141,975.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,358.59 : 478,956.17 = 94,666.51 : x
  2. Step 2: Convert to fraction form
    319,358.59/478,956.17 = 94,666.51/x
  3. Step 3: Cross multiply
    319,358.59x = 478,956.17 × 94,666.51
  4. Step 4: Simplify right side
    319,358.59x = 45,341,109,056.87
  5. Step 5: Solve for x
    x = 45,341,109,056.87/319,358.59
  6. Step 6: Final answer
    x = 141,975.54

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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.