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Finding the Fourth Proportional to 119,312.83, 164,647.50 and 65,597.43

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Solution

The fourth proportional to 119,312.83, 164,647.50 and 65,597.43 is: 90,522.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,312.83 : 164,647.50 = 65,597.43 : x
  2. Step 2: Convert to fraction form
    119,312.83/164,647.50 = 65,597.43/x
  3. Step 3: Cross multiply
    119,312.83x = 164,647.50 × 65,597.43
  4. Step 4: Simplify right side
    119,312.83x = 10,800,453,088.07
  5. Step 5: Solve for x
    x = 10,800,453,088.07/119,312.83
  6. Step 6: Final answer
    x = 90,522.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.