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Finding the Fourth Proportional to 116,232.18, 160,403.13 and 65,931.18

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Solution

The fourth proportional to 116,232.18, 160,403.13 and 65,931.18 is: 90,986.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,232.18 : 160,403.13 = 65,931.18 : x
  2. Step 2: Convert to fraction form
    116,232.18/160,403.13 = 65,931.18/x
  3. Step 3: Cross multiply
    116,232.18x = 160,403.13 × 65,931.18
  4. Step 4: Simplify right side
    116,232.18x = 10,575,567,636.59
  5. Step 5: Solve for x
    x = 10,575,567,636.59/116,232.18
  6. Step 6: Final answer
    x = 90,986.57

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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.