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Finding the Fourth Proportional to 319,010.61, 478,585.98 and 94,353.54

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Solution

The fourth proportional to 319,010.61, 478,585.98 and 94,353.54 is: 141,551.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,010.61 : 478,585.98 = 94,353.54 : x
  2. Step 2: Convert to fraction form
    319,010.61/478,585.98 = 94,353.54/x
  3. Step 3: Cross multiply
    319,010.61x = 478,585.98 × 94,353.54
  4. Step 4: Simplify right side
    319,010.61x = 45,156,281,407.37
  5. Step 5: Solve for x
    x = 45,156,281,407.37/319,010.61
  6. Step 6: Final answer
    x = 141,551.03

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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.