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Finding the Fourth Proportional to 119,627.61, 165,085.29 and 65,911.38

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Solution

The fourth proportional to 119,627.61, 165,085.29 and 65,911.38 is: 90,957.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,627.61 : 165,085.29 = 65,911.38 : x
  2. Step 2: Convert to fraction form
    119,627.61/165,085.29 = 65,911.38/x
  3. Step 3: Cross multiply
    119,627.61x = 165,085.29 × 65,911.38
  4. Step 4: Simplify right side
    119,627.61x = 10,880,999,281.60
  5. Step 5: Solve for x
    x = 10,880,999,281.60/119,627.61
  6. Step 6: Final answer
    x = 90,957.26

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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.