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Finding the Fourth Proportional to 319,164.72, 478,746.18 and 94,542.66

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Solution

The fourth proportional to 319,164.72, 478,746.18 and 94,542.66 is: 141,813.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,164.72 : 478,746.18 = 94,542.66 : x
  2. Step 2: Convert to fraction form
    319,164.72/478,746.18 = 94,542.66/x
  3. Step 3: Cross multiply
    319,164.72x = 478,746.18 × 94,542.66
  4. Step 4: Simplify right side
    319,164.72x = 45,261,937,322.04
  5. Step 5: Solve for x
    x = 45,261,937,322.04/319,164.72
  6. Step 6: Final answer
    x = 141,813.72

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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.