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Finding the Fourth Proportional to 319,264.57, 478,972.01 and 94,626.87

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Solution

The fourth proportional to 319,264.57, 478,972.01 and 94,626.87 is: 141,962.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,264.57 : 478,972.01 = 94,626.87 : x
  2. Step 2: Convert to fraction form
    319,264.57/478,972.01 = 94,626.87/x
  3. Step 3: Cross multiply
    319,264.57x = 478,972.01 × 94,626.87
  4. Step 4: Simplify right side
    319,264.57x = 45,323,622,123.91
  5. Step 5: Solve for x
    x = 45,323,622,123.91/319,264.57
  6. Step 6: Final answer
    x = 141,962.58

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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.