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Finding the Fourth Proportional to 119,518.70, 164,934.43 and 65,802.58

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Solution

The fourth proportional to 119,518.70, 164,934.43 and 65,802.58 is: 90,806.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,518.70 : 164,934.43 = 65,802.58 : x
  2. Step 2: Convert to fraction form
    119,518.70/164,934.43 = 65,802.58/x
  3. Step 3: Cross multiply
    119,518.70x = 164,934.43 × 65,802.58
  4. Step 4: Simplify right side
    119,518.70x = 10,853,111,024.83
  5. Step 5: Solve for x
    x = 10,853,111,024.83/119,518.70
  6. Step 6: Final answer
    x = 90,806.80

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1.5x scale

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.