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Finding the Fourth Proportional to 119,279.41, 164,605.95 and 65,569.93

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Solution

The fourth proportional to 119,279.41, 164,605.95 and 65,569.93 is: 90,486.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,279.41 : 164,605.95 = 65,569.93 : x
  2. Step 2: Convert to fraction form
    119,279.41/164,605.95 = 65,569.93/x
  3. Step 3: Cross multiply
    119,279.41x = 164,605.95 × 65,569.93
  4. Step 4: Simplify right side
    119,279.41x = 10,793,200,207.57
  5. Step 5: Solve for x
    x = 10,793,200,207.57/119,279.41
  6. Step 6: Final answer
    x = 90,486.70

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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.