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Finding the Fourth Proportional to 319,158.68, 478,808.40 and 94,536.80

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Solution

The fourth proportional to 319,158.68, 478,808.40 and 94,536.80 is: 141,826.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,158.68 : 478,808.40 = 94,536.80 : x
  2. Step 2: Convert to fraction form
    319,158.68/478,808.40 = 94,536.80/x
  3. Step 3: Cross multiply
    319,158.68x = 478,808.40 × 94,536.80
  4. Step 4: Simplify right side
    319,158.68x = 45,265,013,949.12
  5. Step 5: Solve for x
    x = 45,265,013,949.12/319,158.68
  6. Step 6: Final answer
    x = 141,826.05

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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.