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Finding the Fourth Proportional to 319,053.60, 478,580.40 and 94,448.70

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Solution

The fourth proportional to 319,053.60, 478,580.40 and 94,448.70 is: 141,673.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,053.60 : 478,580.40 = 94,448.70 : x
  2. Step 2: Convert to fraction form
    319,053.60/478,580.40 = 94,448.70/x
  3. Step 3: Cross multiply
    319,053.60x = 478,580.40 × 94,448.70
  4. Step 4: Simplify right side
    319,053.60x = 45,201,296,625.48
  5. Step 5: Solve for x
    x = 45,201,296,625.48/319,053.60
  6. Step 6: Final answer
    x = 141,673.05

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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.