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Finding the Fourth Proportional to 319,064.48, 478,596.80 and 94,407.52

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Solution

The fourth proportional to 319,064.48, 478,596.80 and 94,407.52 is: 141,611.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,064.48 : 478,596.80 = 94,407.52 : x
  2. Step 2: Convert to fraction form
    319,064.48/478,596.80 = 94,407.52/x
  3. Step 3: Cross multiply
    319,064.48x = 478,596.80 × 94,407.52
  4. Step 4: Simplify right side
    319,064.48x = 45,183,136,967.94
  5. Step 5: Solve for x
    x = 45,183,136,967.94/319,064.48
  6. Step 6: Final answer
    x = 141,611.30

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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.