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Finding the Fourth Proportional to 113,292.76, 156,348 and 62,307.60

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Solution

The fourth proportional to 113,292.76, 156,348 and 62,307.60 is: 85,986.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,292.76 : 156,348 = 62,307.60 : x
  2. Step 2: Convert to fraction form
    113,292.76/156,348 = 62,307.60/x
  3. Step 3: Cross multiply
    113,292.76x = 156,348 × 62,307.60
  4. Step 4: Simplify right side
    113,292.76x = 9,741,668,644.80
  5. Step 5: Solve for x
    x = 9,741,668,644.80/113,292.76
  6. Step 6: Final answer
    x = 85,986.68

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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.