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Finding the Fourth Proportional to 119,416.97, 164,798.21 and 65,703.34

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Solution

The fourth proportional to 119,416.97, 164,798.21 and 65,703.34 is: 90,672.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,416.97 : 164,798.21 = 65,703.34 : x
  2. Step 2: Convert to fraction form
    119,416.97/164,798.21 = 65,703.34/x
  3. Step 3: Cross multiply
    119,416.97x = 164,798.21 × 65,703.34
  4. Step 4: Simplify right side
    119,416.97x = 10,827,792,823.02
  5. Step 5: Solve for x
    x = 10,827,792,823.02/119,416.97
  6. Step 6: Final answer
    x = 90,672.15

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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.